diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index d741d7df9e..1468513d2c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -55,6 +55,7 @@ repos:
             entry: '(category=|\s)DeprecationWarning[,)]'
             language: pygrep
             types_or: [python, cython]
+            exclude: (^|/)tests?/
           - id: cmake-format
             name: cmake-format
             entry: ./cpp/scripts/run-cmake-format.sh cmake-format
diff --git a/python/cuml/cuml_accel_tests/integration/test_hdbscan_core.py b/python/cuml/cuml_accel_tests/integration/test_hdbscan_core.py
index 87537a7df1..e915012b41 100644
--- a/python/cuml/cuml_accel_tests/integration/test_hdbscan_core.py
+++ b/python/cuml/cuml_accel_tests/integration/test_hdbscan_core.py
@@ -124,6 +124,9 @@ def test_hdbscan_gen_min_span_tree(synthetic_data):
     ), "Minimum spanning tree should be generated when gen_min_span_tree=True"
 
 
+@pytest.mark.filterwarnings(
+    "ignore:Instantiating a backend using a LocalPath:UserWarning"
+)
 def test_hdbscan_memory(synthetic_data, tmpdir):
     X, _ = synthetic_data
     from joblib import Memory
diff --git a/python/cuml/cuml_accel_tests/integration/test_umap.py b/python/cuml/cuml_accel_tests/integration/test_umap.py
index ca7244028e..b18a082e25 100644
--- a/python/cuml/cuml_accel_tests/integration/test_umap.py
+++ b/python/cuml/cuml_accel_tests/integration/test_umap.py
@@ -66,6 +66,15 @@ def test_umap_min_dist(manifold_data, min_dist):
         "haversine",
     ],
 )
+@pytest.mark.filterwarnings(
+    "ignore:gradient function is not yet implemented:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:n_jobs value .* overridden to .* by setting random_state:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:overflow encountered in cast:RuntimeWarning"
+)
 def test_umap_metric(manifold_data, metric):
     X = manifold_data
     # haversine only works for 2D data
@@ -177,6 +186,9 @@ def test_umap_angular_rp_forest(manifold_data, angular_rp_forest):
 
 
 @pytest.mark.parametrize("densmap", [True, False])
+@pytest.mark.filterwarnings(
+    "ignore:n_jobs value .* overridden to .* by setting random_state:UserWarning"
+)
 def test_umap_densmap(manifold_data, densmap):
     X = manifold_data
     umap = UMAP(densmap=densmap, random_state=42)
diff --git a/python/cuml/cuml_accel_tests/test_magics.py b/python/cuml/cuml_accel_tests/test_magics.py
index 071f62caa0..90949b3400 100644
--- a/python/cuml/cuml_accel_tests/test_magics.py
+++ b/python/cuml/cuml_accel_tests/test_magics.py
@@ -22,6 +22,8 @@
 
 
 SCRIPT_HEADER = """
+import warnings
+warnings.filterwarnings('ignore', category=UserWarning)
 from IPython.core.interactiveshell import InteractiveShell
 from traitlets.config import Config
 c = Config()
diff --git a/python/cuml/pyproject.toml b/python/cuml/pyproject.toml
index 467f3f44c6..24b7c95bbd 100644
--- a/python/cuml/pyproject.toml
+++ b/python/cuml/pyproject.toml
@@ -54,30 +54,29 @@ filterwarnings = [
   "error:::cudf",
   "ignore:[^.]*ABCs[^.]*:DeprecationWarning:patsy[.*]",
   "ignore:(.*)alias(.*):DeprecationWarning:hdbscan[.*]",
-  # https://github.com/rapidsai/build-planning/issues/116
-  "ignore:.*cuda..* module is deprecated.*:DeprecationWarning",
-  # TODO: https://github.com/rapidsai/cuml/issues/5878
-  "ignore:.*ndarray.scatter_[(max|add)].* is deprecated:DeprecationWarning:cupyx",
   # TODO: https://github.com/rapidsai/cuml/issues/5879
   "ignore::FutureWarning:sklearn",
   "ignore::DeprecationWarning:sklearn",
-  # https://github.com/pytest-dev/pytest-cov/issues/557
-  "ignore:The --rsyncdir command line argument:DeprecationWarning",
-  # https://github.com/scikit-learn/scikit-learn/pull/25157
-  "ignore:.* is deprecated. Use files:DeprecationWarning",
-  # https://github.com/scikit-learn/scikit-learn/pull/25741
-  "ignore:`product` is deprecated as of NumPy 1.25.0:DeprecationWarning",
-  # https://github.com/scikit-learn-contrib/hdbscan/pull/612
-  "ignore:`alltrue` is deprecated as of NumPy 1.25.0:DeprecationWarning",
-  # https://github.com/scikit-learn/scikit-learn/pull/26287
-  "ignore:is_sparse is deprecated and will be removed:DeprecationWarning",
+  # From sklearn
+  "ignore:A column-vector y was passed:sklearn.exceptions.DataConversionWarning",
   # From dask-glm
   "ignore:pkg_resources is deprecated as an API:DeprecationWarning",
   "ignore:Deprecated call to `pkg_resources.declare_namespace:DeprecationWarning",
   "ignore:`rcond` parameter will change to the default:FutureWarning",
   "ignore:Dask configuration key 'fuse_ave_width':FutureWarning",
+  # From dask/distributed
+  "ignore:Dask annotations .* detected:UserWarning",
+  "ignore:Sending large graph of size:UserWarning",
   # From hdbscan
   "ignore:Conversion of an array with ndim > 0:DeprecationWarning",
+  # From umap-learn
+  "ignore:Tensorflow not installed.*:ImportWarning:umap",
+  # From sklearn estimator checks
+  "ignore:Estimator .* does not inherit from.*:UserWarning",
+  # From numba - GPU under-utilization warnings in tests with small data
+  "ignore::numba.core.errors.NumbaPerformanceWarning",
+  # Allow informational benchmark warnings (pytest-benchmark plugin)
+  "default::pytest_benchmark.logger.PytestBenchmarkWarning",
 ]
 
 [project]
diff --git a/python/cuml/tests/dask/test_dask_logistic_regression.py b/python/cuml/tests/dask/test_dask_logistic_regression.py
index 9cea222fc6..6752915b44 100644
--- a/python/cuml/tests/dask/test_dask_logistic_regression.py
+++ b/python/cuml/tests/dask/test_dask_logistic_regression.py
@@ -552,6 +552,9 @@ def test_sparse_from_dense(reg_dtype, client):
 
 
 @pytest.mark.parametrize("dtype", [np.float32, np.float64])
+@pytest.mark.filterwarnings(
+    "ignore:The max_iter was reached which means the coef_ did not converge:sklearn.exceptions.ConvergenceWarning"
+)
 def test_sparse_nlp20news(dtype, nlp_20news, client):
 
     X, y = nlp_20news
@@ -1094,6 +1097,9 @@ def test_standardization_sparse_with_shift_scale(
 
 @pytest.mark.parametrize("standardization", [False, True])
 @pytest.mark.parametrize("fit_intercept", [False, True])
+@pytest.mark.filterwarnings(
+    "ignore:invalid value encountered in divide:RuntimeWarning:sklearn"
+)
 def test_sparse_all_zeroes(
     standardization, fit_intercept, client, X=None, y=None, n_parts=2
 ):
diff --git a/python/cuml/tests/explainer/test_explainer_kernel_shap.py b/python/cuml/tests/explainer/test_explainer_kernel_shap.py
index 97bd40d1bc..2e57e1209b 100644
--- a/python/cuml/tests/explainer/test_explainer_kernel_shap.py
+++ b/python/cuml/tests/explainer/test_explainer_kernel_shap.py
@@ -342,6 +342,11 @@ def test_l1_regularization(exact_shap_regression_dataset, l1_type):
     assert isinstance(nz, cp.ndarray)
 
 
+@pytest.mark.filterwarnings("ignore::sklearn.exceptions.ConvergenceWarning")
+@pytest.mark.filterwarnings("ignore:Changing solver.*:UserWarning")
+@pytest.mark.filterwarnings(
+    "ignore:overflow encountered in divide:RuntimeWarning"
+)
 def test_typeerror_input():
     X, y = make_regression(n_samples=100, n_features=10, random_state=10)
     clf = Lasso()
diff --git a/python/cuml/tests/test_common.py b/python/cuml/tests/test_common.py
index 201ada3afe..7430ec3a4e 100644
--- a/python/cuml/tests/test_common.py
+++ b/python/cuml/tests/test_common.py
@@ -30,6 +30,7 @@
         cuml.UMAP,
     ],
 )
+@pytest.mark.filterwarnings("ignore:The number of bins.*:UserWarning")
 def test_random_state_argument(Estimator):
     X, y = make_blobs(random_state=0)
     # Check that both integer and np.random.RandomState are accepted
diff --git a/python/cuml/tests/test_doctest.py b/python/cuml/tests/test_doctest.py
index f35e3d075a..b3eb999580 100644
--- a/python/cuml/tests/test_doctest.py
+++ b/python/cuml/tests/test_doctest.py
@@ -17,6 +17,7 @@
 import doctest
 import inspect
 import io
+import warnings
 
 import cudf
 import numpy as np
@@ -112,8 +113,13 @@ def test_docstring(docstring):
     # Capture stdout and include failing outputs in the traceback.
     doctest_stdout = io.StringIO()
     with contextlib.redirect_stdout(doctest_stdout):
-        runner.run(docstring)
-        results = runner.summarize()
+        # Suppress expected warnings during doctest execution
+        with warnings.catch_warnings():
+            warnings.filterwarnings("ignore", category=UserWarning)
+            warnings.filterwarnings("ignore", category=FutureWarning)
+            warnings.filterwarnings("ignore", category=DeprecationWarning)
+            runner.run(docstring)
+            results = runner.summarize()
     try:
         assert not results.failed, (
             f"{results.failed} of {results.attempted} doctests failed for "
diff --git a/python/cuml/tests/test_linear_model.py b/python/cuml/tests/test_linear_model.py
index 923c7d5c65..f6fe6a91dc 100644
--- a/python/cuml/tests/test_linear_model.py
+++ b/python/cuml/tests/test_linear_model.py
@@ -1129,6 +1129,7 @@ def test_elasticnet_solvers_eq(datatype, alpha, l1_ratio, nrows, column_info):
     assert np.corrcoef(cd.coef_, qn.coef_)[0, 1] > 0.98
 
 
+@pytest.mark.filterwarnings("ignore:Changing solver.*:UserWarning")
 @given(
     algorithm=st.sampled_from(ALGORITHMS),
     xp=st.sampled_from([np, cp]),
diff --git a/python/cuml/tests/test_metrics.py b/python/cuml/tests/test_metrics.py
index dc511a5575..cd1c819e65 100644
--- a/python/cuml/tests/test_metrics.py
+++ b/python/cuml/tests/test_metrics.py
@@ -835,6 +835,9 @@ def test_confusion_matrix_binary():
     cp.testing.assert_array_equal(ref, cp.array([tn, fp, fn, tp]))
 
 
+@pytest.mark.filterwarnings(
+    "ignore:The number of unique classes is greater than 50% of the number of samples.*:UserWarning"
+)
 @pytest.mark.parametrize("n_samples", [50, 3000, stress_param(500000)])
 @pytest.mark.parametrize("dtype", [np.int32, np.int64, np.float32])
 @pytest.mark.parametrize("problem_type", ["binary", "multiclass"])
@@ -1104,6 +1107,15 @@ def prep_dense_array(array, metric, col_major=0):
         return np.asfortranarray(array) if col_major else array
 
 
+@pytest.mark.filterwarnings(
+    "ignore:X was converted to boolean for metric russellrao:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:Y was converted to boolean for metric russellrao:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:Data was converted to boolean for metric russellrao:sklearn.exceptions.DataConversionWarning"
+)
 @pytest.mark.parametrize("metric", PAIRWISE_DISTANCE_METRICS.keys())
 @pytest.mark.parametrize(
     "matrix_size", [(5, 4), (1000, 3), (2, 10), (500, 400)]
@@ -1176,6 +1188,15 @@ def test_pairwise_distances(metric: str, matrix_size, is_col_major):
         pairwise_distances(X, Y, metric=metric.capitalize())
 
 
+@pytest.mark.filterwarnings(
+    "ignore:X was converted to boolean for metric russellrao:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:Y was converted to boolean for metric russellrao:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:Data was converted to boolean for metric russellrao:sklearn.exceptions.DataConversionWarning"
+)
 @pytest.mark.parametrize("metric", PAIRWISE_DISTANCE_METRICS.keys())
 @pytest.mark.parametrize(
     "matrix_size",
@@ -1223,6 +1244,15 @@ def test_pairwise_distances_sklearn_comparison(metric: str, matrix_size):
         cp.testing.assert_array_almost_equal(S, S2, decimal=compare_precision)
 
 
+@pytest.mark.filterwarnings(
+    "ignore:X was converted to boolean for metric russellrao:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:Y was converted to boolean for metric russellrao:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:Data was converted to boolean for metric russellrao:sklearn.exceptions.DataConversionWarning"
+)
 @pytest.mark.parametrize("metric", PAIRWISE_DISTANCE_METRICS.keys())
 def test_pairwise_distances_one_dimension_order(metric: str):
     # Test the pairwise_distance helper function for 1 dimensional cases which
diff --git a/python/cuml/tests/test_naive_bayes.py b/python/cuml/tests/test_naive_bayes.py
index b0b1d7a875..a71965ab24 100644
--- a/python/cuml/tests/test_naive_bayes.py
+++ b/python/cuml/tests/test_naive_bayes.py
@@ -496,6 +496,10 @@ def test_gaussian_parameters(priors, var_smoothing, nlp_20news):
     assert_array_equal(y_hat, y_hat_sk)
 
 
+@pytest.mark.filterwarnings("ignore:X dtype is not int32.*:UserWarning")
+@pytest.mark.filterwarnings(
+    "ignore:Changing the sparsity structure of a csr_matrix is expensive.*:scipy.sparse._base.SparseEfficiencyWarning"
+)
 @pytest.mark.parametrize("x_dtype", [cp.int32, cp.float32, cp.float64])
 @pytest.mark.parametrize("y_dtype", [cp.int32, cp.int64])
 @pytest.mark.parametrize("is_sparse", [True, False])
@@ -535,6 +539,10 @@ def test_categorical(x_dtype, y_dtype, is_sparse, nlp_20news):
     assert sk_score - THRES <= cuml_score <= sk_score + THRES
 
 
+@pytest.mark.filterwarnings("ignore:X dtype is not int32.*:UserWarning")
+@pytest.mark.filterwarnings(
+    "ignore:Changing the sparsity structure of a csr_matrix is expensive.*:scipy.sparse._base.SparseEfficiencyWarning"
+)
 @pytest.mark.parametrize("x_dtype", [cp.int32, cp.float32, cp.float64])
 @pytest.mark.parametrize("y_dtype", [cp.int32, cp.int64])
 @pytest.mark.parametrize("is_sparse", [True, False])
@@ -579,6 +587,10 @@ def test_categorical_partial_fit(x_dtype, y_dtype, is_sparse, nlp_20news):
     assert expected_score - THRES <= cuml_score <= expected_score + THRES
 
 
+@pytest.mark.filterwarnings("ignore:X dtype is not int32.*:UserWarning")
+@pytest.mark.filterwarnings(
+    "ignore:Changing the sparsity structure of a csr_matrix is expensive.*:scipy.sparse._base.SparseEfficiencyWarning"
+)
 @pytest.mark.parametrize("class_prior", [None, "balanced", "unbalanced"])
 @pytest.mark.parametrize("alpha", [0.1, 0.5, 1.5])
 @pytest.mark.parametrize("fit_prior", [False, True])
diff --git a/python/cuml/tests/test_nearest_neighbors.py b/python/cuml/tests/test_nearest_neighbors.py
index 949e8a2cdb..ef6de85646 100644
--- a/python/cuml/tests/test_nearest_neighbors.py
+++ b/python/cuml/tests/test_nearest_neighbors.py
@@ -378,6 +378,9 @@ def test_knn_separate_index_search(input_type, nrows, n_feats, k, metric):
 
 @pytest.mark.parametrize("input_type", ["dataframe", "ndarray"])
 @pytest.mark.parametrize("nrows", [unit_param(500), stress_param(70000)])
+@pytest.mark.filterwarnings(
+    "ignore:algorithm='rbc' requires sqrt\\(n_samples\\) >= n_neighbors.*:UserWarning"
+)
 @pytest.mark.parametrize("n_feats", [unit_param(3), stress_param(1000)])
 @pytest.mark.parametrize(
     "k", [unit_param(3), unit_param(35), stress_param(50)]
diff --git a/python/cuml/tests/test_preprocessing.py b/python/cuml/tests/test_preprocessing.py
index ef13e8ad34..bdb9571309 100644
--- a/python/cuml/tests/test_preprocessing.py
+++ b/python/cuml/tests/test_preprocessing.py
@@ -917,6 +917,9 @@ def test_function_transformer_sparse(sparse_clf_dataset):  # noqa: F811
     assert_allclose(r_X, sk_r_X)
 
 
+@pytest.mark.filterwarnings(
+    "ignore:'ignore_implicit_zeros' takes effect only with sparse matrix.*:UserWarning"
+)
 @pytest.mark.parametrize("n_quantiles", [30, 100])
 @pytest.mark.parametrize("output_distribution", ["uniform", "normal"])
 @pytest.mark.parametrize("ignore_implicit_zeros", [False, True])
@@ -1033,6 +1036,12 @@ def test_quantile_transformer_sparse(
     assert_allclose(r_X, sk_r_X)
 
 
+@pytest.mark.filterwarnings(
+    "ignore:'ignore_implicit_zeros' takes effect only with sparse matrix.*:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:n_quantiles .* is greater than the total number of samples.*:UserWarning"
+)
 @pytest.mark.parametrize("axis", [0, 1])
 @pytest.mark.parametrize("n_quantiles", [30, 100])
 @pytest.mark.parametrize("output_distribution", ["uniform", "normal"])
diff --git a/python/cuml/tests/test_sklearn_compatibility.py b/python/cuml/tests/test_sklearn_compatibility.py
index 1cd16d3735..d23b85b9f3 100644
--- a/python/cuml/tests/test_sklearn_compatibility.py
+++ b/python/cuml/tests/test_sklearn_compatibility.py
@@ -840,6 +840,21 @@ def _check_name(check):
     ],
     expected_failed_checks=get_xfails,
 )
+@pytest.mark.filterwarnings(
+    "ignore:ValueError occurred during set_params.*:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:TypeError occurred during set_params.*:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:perplexity.*should be less than n_samples.*:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:Estimator's parameters changed after set_params raised ValueError:UserWarning"
+)
+@pytest.mark.filterwarnings("ignore:Changing solver to 'svd'.*:UserWarning")
+@pytest.mark.filterwarnings("ignore:The number of bins.*:UserWarning")
+@pytest.mark.filterwarnings("ignore::pytest.PytestUnraisableExceptionWarning")
 def test_sklearn_compatible_estimator(estimator, check):
     # Check that all estimators pass the "common estimator" checks
     # provided by scikit-learn
diff --git a/python/cuml/tests/test_text_feature_extraction.py b/python/cuml/tests/test_text_feature_extraction.py
index 016479df4e..e50a70705b 100644
--- a/python/cuml/tests/test_text_feature_extraction.py
+++ b/python/cuml/tests/test_text_feature_extraction.py
@@ -473,6 +473,9 @@ def test_hashingvectorizer():
 
 
 @pytest.mark.xfail
+@pytest.mark.filterwarnings(
+    "ignore:The parameter 'token_pattern' will not be used:UserWarning:sklearn"
+)
 def test_vectorizer_empty_token_case():
     """
     We ignore empty tokens right now but sklearn treats them as a character
diff --git a/python/cuml/tests/test_trustworthiness.py b/python/cuml/tests/test_trustworthiness.py
index 54d42ec269..969b269565 100644
--- a/python/cuml/tests/test_trustworthiness.py
+++ b/python/cuml/tests/test_trustworthiness.py
@@ -27,6 +27,9 @@
 @pytest.mark.parametrize("n_features", [10, 100])
 @pytest.mark.parametrize("n_components", [2, 8])
 @pytest.mark.parametrize("batch_size", [128, 1024])
+@pytest.mark.filterwarnings(
+    "ignore:n_jobs value.*overridden.*by setting random_state.*:UserWarning"
+)
 def test_trustworthiness(
     input_type, n_samples, n_features, n_components, batch_size
 ):
diff --git a/python/cuml/tests/test_umap.py b/python/cuml/tests/test_umap.py
index f2fa3690cb..ff1e7e7e43 100644
--- a/python/cuml/tests/test_umap.py
+++ b/python/cuml/tests/test_umap.py
@@ -683,6 +683,12 @@ def correctness_sparse(a, b, atol=0.1, rtol=0.2, threshold=0.95):
 @pytest.mark.parametrize("n_rows", [200, 800])
 @pytest.mark.parametrize("n_features", [8, 32])
 @pytest.mark.parametrize("n_neighbors", [8, 16])
+@pytest.mark.filterwarnings(
+    "ignore:Spectral initialisation failed.*:UserWarning"
+)
+@pytest.mark.filterwarnings(
+    "ignore:Graph is not fully connected.*:UserWarning"
+)
 def test_fuzzy_simplicial_set(n_rows, n_features, n_neighbors):
     n_clusters = 30
     random_state = 42
@@ -738,6 +744,9 @@ def test_fuzzy_simplicial_set(n_rows, n_features, n_neighbors):
         ("canberra", "nn_descent", False),
     ],
 )
+@pytest.mark.filterwarnings(
+    "ignore:gradient function is not yet implemented.*:UserWarning"
+)
 def test_umap_distance_metrics_fit_transform_trust(
     metric, build_algo, supported
 ):
@@ -794,6 +803,9 @@ def test_umap_distance_metrics_fit_transform_trust(
         ("canberra", True, True),
     ],
 )
+@pytest.mark.filterwarnings(
+    "ignore:gradient function is not yet implemented.*:UserWarning"
+)
 def test_umap_distance_metrics_fit_transform_trust_on_sparse_input(
     metric, supported, umap_learn_supported
 ):