diff --git a/easybuild/easyblocks/o/optislang.py b/easybuild/easyblocks/o/optislang.py
new file mode 100644
index 0000000000..84b335e5fd
--- /dev/null
+++ b/easybuild/easyblocks/o/optislang.py
@@ -0,0 +1,105 @@
+##
+# Copyright 2009-2024 Ghent University
+#
+# This file is part of EasyBuild,
+# originally created by the HPC team of Ghent University (http://ugent.be/hpc/en),
+# with support of Ghent University (http://ugent.be/hpc),
+# the Flemish Supercomputer Centre (VSC) (https://www.vscentrum.be),
+# Flemish Research Foundation (FWO) (http://www.fwo.be/en)
+# and the Department of Economy, Science and Innovation (EWI) (http://www.ewi-vlaanderen.be/en).
+#
+# https://github.com/easybuilders/easybuild
+#
+# EasyBuild is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation v2.
+#
+# EasyBuild is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with EasyBuild.  If not, see <http://www.gnu.org/licenses/>.
+##
+"""
+EasyBuild support for installing ANSYS optiSLang, implemented as an easyblock
+
+@author: Chia-Jung Hsu (Chalmers University for Technology)
+"""
+import glob
+import os
+import stat
+import tempfile
+
+from easybuild.easyblocks.generic.packedbinary import PackedBinary
+from easybuild.tools.build_log import EasyBuildError
+from easybuild.tools.filetools import adjust_permissions
+from easybuild.tools.run import run_cmd
+
+
+class EB_optiSLang(PackedBinary):
+    """Support for installing ANSYS optiSLang."""
+
+    def __init__(self, *args, **kwargs):
+        """Initialize optiSLang-specific variables."""
+        super(EB_optiSLang, self).__init__(*args, **kwargs)
+
+    def install_step(self):
+        """Custom install procedure for ANSYS optiSLang."""
+        licservs = self.cfg['license_server']
+        if licservs is None:
+            licservs = os.getenv('EB_ANSYS_LICENSE_SERVER', 'license.example.com')
+        licservs = licservs.split(',')
+        licport = self.cfg['license_server_port']
+        if licport is None:
+            licport = os.getenv('EB_ANSYS_LICENSE_SERVER_PORT', '2325:1055')
+        licopts = ['-licserverinfo %s:%s' % (licport, serv) for serv in licservs]
+        licoptsstr = ' '.join(licopts)
+
+        tmpdir = tempfile.mkdtemp()
+
+        # Sources (e.g. iso files) may drop the execute permissions
+        adjust_permissions('INSTALL', stat.S_IXUSR)
+        cmd = "./INSTALL -silent -install_dir %s -usetempdir %s %s" % (self.installdir, tmpdir, licoptsstr)
+        run_cmd(cmd, log_all=True, simple=True)
+
+        adjust_permissions(self.installdir, stat.S_IWOTH, add=False)
+
+    def make_module_req_guess(self):
+        """Custom extra module file entries for ANSYS optiSLang."""
+
+        guesses = super(EB_optiSLang, self).make_module_req_guess()
+
+        idirs = glob.glob(os.path.join(self.installdir, 'v*/'))
+        if len(idirs) == 1:
+            subdir = os.path.relpath(idirs[0], self.installdir)
+            bindirs = [
+                'aisol/bin/linx64',
+                'dpf/bin/linux64',
+                'optiSLang',
+            ]
+            guesses['PATH'] = [os.path.join(subdir, d) for d in bindirs]
+
+        return guesses
+
+    def sanity_check_step(self):
+        """Custom sanity check for ANSYS optiSLang."""
+
+        idirs = glob.glob(os.path.join(self.installdir, 'v*/'))
+        if len(idirs) == 1:
+            subdir = os.path.relpath(idirs[0], self.installdir)
+        else:
+            raise EasyBuildError("Failed to locate single install subdirectory v*/")
+
+        errorlogfile = os.path.join(self.installdir, "install.err")
+        if os.path.isfile(errorlogfile):
+            raise EasyBuildError("Found error log from optiSLang installer %s" % errorlogfile)
+
+        custom_paths = {
+            'files': [os.path.join(subdir, 'optiSLang', x) for x in ['optislang', 'optislang-python']],
+            'dirs': [os.path.join(subdir, x) for x in ['aisol', 'dpf']]
+        }
+        custom_commands = ['optislang --help']
+
+        super(EB_optiSLang, self).sanity_check_step(custom_paths=custom_paths, custom_commands=custom_commands)