diff --git a/easybuild/easyconfigs/t/TELEMAC-MASCARET/TELEMAC-MASCARET-8p3r1-foss-2021b.eb b/easybuild/easyconfigs/t/TELEMAC-MASCARET/TELEMAC-MASCARET-8p3r1-foss-2021b.eb
new file mode 100644
index 00000000000..a28af36eaef
--- /dev/null
+++ b/easybuild/easyconfigs/t/TELEMAC-MASCARET/TELEMAC-MASCARET-8p3r1-foss-2021b.eb
@@ -0,0 +1,87 @@
+easyblock = 'Binary'
+
+name = 'TELEMAC-MASCARET'
+version = '8p3r1'
+
+homepage = 'http://www.opentelemac.org'
+description = """TELEMAC-MASCARET is an integrated suite of solvers for use in the field of free-surface flow. Having
+been used in the context of many studies throughout the world, it has become one of the major standards in its field."""
+
+toolchain = {'name': 'foss', 'version': '2021b'}
+toolchainopts = {'extra_fcflags': "-fallow-invalid-boz"}
+
+source_urls = ['https://gitlab.pam-retd.fr/otm/telemac-mascaret/-/archive/v%(version)s/']
+sources = ['telemac-mascaret-v%(version)s.tar.gz']
+checksums = ['e37ae6b7eefca0e544c6431308e43828d439be08701356814dd1e04ca762fb7d']
+
+dependencies = [
+    ('Python', '3.9.6'),
+    ('SciPy-bundle', '2021.10'),  # provides numpy, scipy
+    ('matplotlib', '3.4.3'),
+    ('HDF5', '1.12.1'),
+    ('METIS', '5.1.0'),
+    ('SCOTCH', '6.1.2'),
+    ('MUMPS', '5.4.1', '-metis'),
+]
+
+extract_sources = True
+unpack_options = '--strip-components=1'
+
+buildininstalldir = True
+
+local_tweak_cfg_cmd = ' '.join([
+    "sed -i -e 's/S9.gfortran/easybuild/g'",
+    # strip out use of AED, GOTM, MED (optional dependencies)
+    "-e 's/\(^[a-z]*_aed:\).*/\\1/g' -e 's/\(^[a-z]*_gotm:\).*/\\1/g' -e 's/\(^[a-z]*_med:\).*/\\1/g'",
+    # replace -O2 with desired compiler options
+    '-e "s/-O2/$F90FLAGS/g"',
+    # fix linker option for BLAS
+    '-e "s/ -lblas/ $LIBBLAS/g"',
+    # downgrade Fortran compiler error to warning
+    "-e 's/^fflags_gfo:/fflags_gfo: -fallow-invalid-boz/g'",
+    "$HOMETEL/configs/systel.easybuild.cfg",
+])
+
+install_cmd = ' && '.join([
+    "export HOMETEL=$PWD",
+    # add Python scripts to $PATH and $PYTHONPATH
+    "export PATH=$HOMETEL/scripts/python3/:$PATH",
+    "export PYTHONPATH=$HOMETEL/scripts/python3:$PYTHONPATH",
+    # force python to flush its output
+    "export PYTHONUNBUFFERED=1",
+    "cp $HOMETEL/configs/systel.edf.cfg $HOMETEL/configs/systel.easybuild.cfg",
+    local_tweak_cfg_cmd,
+    "export SYSTELCFG=$HOMETEL/configs/systel.easybuild.cfg",
+    "export USETELCFG=easybuild",
+    "export SCALAPACKHOME=$EBROOTSCALAPACK",
+    "export METISHOME=$EBROOTMETIS",
+    "export SCOTCHHOME=$EBROOTSCOTCH",
+    "export MUMPSHOME=$EBROOTMUMPS",
+    "export HDF5HOME=$EBROOTHDF5",
+    "config.py",
+    "compile_telemac.py -j %(parallel)s",
+])
+
+sanity_check_paths = {
+    'files': ['builds/easybuild/bin/telemac2d', 'builds/easybuild/bin/telemac3d',
+              'builds/easybuild/lib/libtelemac2d.%s' % SHLIB_EXT, 'builds/easybuild/lib/libtelemac3d.%s' % SHLIB_EXT],
+    'dirs': ['scripts/python3'],
+}
+
+sanity_check_commands = [
+    "tmpdir=$(mktemp -d) && cp -a %(installdir)s/examples/telemac2d/gouttedo $tmpdir/ && chmod -R u+w $tmpdir && "
+    "cd $tmpdir/gouttedo && telemac2d.py t2d_gouttedo.cas",
+]
+
+modextrapaths = {
+    'LD_LIBRARY_PATH': 'builds/easybuild/lib',
+    'PATH': 'scripts/python3',
+    'PYTHONPATH': 'scripts/python3',
+}
+
+modextravars = {
+    'SYSTELCFG': '%(installdir)s/configs/systel.easybuild.cfg',
+    'USETELCFG': 'easybuild',
+}
+
+moduleclass = 'geo'