diff --git a/dev-python/pymongo/Manifest b/dev-python/pymongo/Manifest
index f02309dd42d3f..fae28521b0e4b 100644
--- a/dev-python/pymongo/Manifest
+++ b/dev-python/pymongo/Manifest
@@ -1,3 +1,4 @@
 DIST mongo-python-driver-4.16.0.gh.tar.gz 2569546 BLAKE2B 7e81fd259f6ed21d4a600f41b6945f520b650bcde2764cdafab85664143dbe76b2d9e1a1db0306bc39afdcd62afc3e250c6e04031b01ffd9dacda8b968786c21 SHA512 38e347599fe26cbe9846ef7f1e0e4adb3aea5dc949d0e8a4bd61806dc00808804e1c34e9213f09c30aab75d26243dd2ed54ab5014e604b127a5c71337855195f
 DIST mongo-python-driver-4.17.0.gh.tar.gz 2597488 BLAKE2B ad733542ca37f1de3e267ef58b5d4c23a4ee10f1b7a9e43ad95adc8602b427cee4ed4126632618c2f1f7134da3d51ee31bed27c36aab47c9f0ee1ebb47e5e6ce SHA512 da3d2d6136e9e4c697f6f5a9a38010bcd6f00a5cbf018de7b6afb3bc9e459ce9a8fcc95db79422eb2ef5d677baa564934db01a5ca4e2909a63c4538098986ab7
 DIST mongo-python-driver-4.18.0.gh.tar.gz 2821886 BLAKE2B a7905ba2c5ef44ffc0d3d9ab3da8b59445358652a7a0ded6b1929bf36dfcc0bda63fad52b6f5c80a1bc746433521dc8690c064c10d312f07e2b28658f88ec217 SHA512 c4d2ded2148f98e2a510547b2e14d2aa4bd566d5b7c89e03a787d30be068c78278f5ff90edf4160a875df7bb6342773bc73cf14ac4cae2b66d679661ef6ed918
+DIST mongo-python-driver-4.18.1.gh.tar.gz 2824031 BLAKE2B 16147601da6004c0c87adefe9bf74ce21bcda1a3cf25c0c0ab9d5dc1542b92c1581fa1bb1c6f7024615990e8142ab87bc3fe665ec8cac6df9f48b0accaf9acc7 SHA512 2dd0b300cbfdbc8de197fd5ee21f5bca210b5df1efb1223dd3aa50cddae34b87fd16799450d8126769e50c97ce203d69e9bb1aa4b67a16f63e53a933db88a707
diff --git a/dev-python/pymongo/pymongo-4.18.1.ebuild b/dev-python/pymongo/pymongo-4.18.1.ebuild
new file mode 100644
index 0000000000000..d6e4cb08de579
--- /dev/null
+++ b/dev-python/pymongo/pymongo-4.18.1.ebuild
@@ -0,0 +1,201 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_EXT=1
+DISTUTILS_USE_PEP517=hatchling
+PYTHON_COMPAT=( python3_{12..15} )
+
+inherit check-reqs distutils-r1
+
+MY_P=mongo-python-driver-${PV}
+DESCRIPTION="Python driver for MongoDB"
+HOMEPAGE="
+	https://github.com/mongodb/mongo-python-driver/
+	https://pypi.org/project/pymongo/
+"
+SRC_URI="
+	https://github.com/mongodb/mongo-python-driver/archive/${PV}.tar.gz
+		-> ${MY_P}.gh.tar.gz
+"
+S=${WORKDIR}/${MY_P}
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+IUSE="doc kerberos +native-extensions +test-full"
+
+RDEPEND="
+	<dev-python/dnspython-3.0.0[${PYTHON_USEDEP}]
+	kerberos? ( dev-python/kerberos[${PYTHON_USEDEP}] )
+"
+BDEPEND="
+	dev-python/setuptools[${PYTHON_USEDEP}]
+	test? (
+		test-full? (
+			>=dev-db/mongodb-2.6.0
+		)
+	)
+"
+
+distutils_enable_sphinx doc
+
+EPYTEST_PLUGINS=( pytest-asyncio )
+EPYTEST_RERUNS=5
+distutils_enable_tests pytest
+
+reqcheck() {
+	if use test && use test-full; then
+		# During the tests, database size reaches 1.5G.
+		local CHECKREQS_DISK_BUILD=1536M
+
+		check-reqs_${1}
+	fi
+}
+
+pkg_pretend() {
+	reqcheck pkg_pretend
+}
+
+pkg_setup() {
+	reqcheck pkg_setup
+}
+
+src_prepare() {
+	distutils-r1_src_prepare
+	# we do not want hatch-requirements-txt and its ton of NIH deps
+	sed -i -e '/requirements/d' pyproject.toml || die
+}
+
+python_compile() {
+	# causes build errors to be fatal
+	local -x TOX_ENV_NAME=whatever
+	local DISTUTILS_ARGS=()
+	# unconditionally implicitly disabled on pypy3
+	if ! use native-extensions; then
+		export NO_EXT=1
+	else
+		export PYMONGO_C_EXT_MUST_BUILD=1
+		unset NO_EXT
+	fi
+
+	distutils-r1_python_compile
+
+	# upstream forces setup.py build_ext -i in their setuptools hack
+	find -name '*.so' -delete || die
+}
+
+python_test() {
+	rm -rf bson pymongo || die
+
+	local EPYTEST_DESELECT=(
+		# network-sandbox
+		test/asynchronous/test_async_loop_unblocked.py::TestClientLoopUnblocked::test_client_does_not_block_loop
+		test/asynchronous/test_client.py::AsyncClientUnitTest::test_connection_timeout_ms_propagates_to_DNS_resolver
+		test/asynchronous/test_client.py::AsyncClientUnitTest::test_detected_environment_logging
+		test/asynchronous/test_client.py::AsyncClientUnitTest::test_detected_environment_warning
+		test/asynchronous/test_client.py::TestClient::test_service_name_from_kwargs
+		test/asynchronous/test_client.py::TestClient::test_srv_max_hosts_kwarg
+		test/test_client.py::ClientUnitTest::test_connection_timeout_ms_propagates_to_DNS_resolver
+		test/test_client.py::ClientUnitTest::test_detected_environment_logging
+		test/test_client.py::ClientUnitTest::test_detected_environment_warning
+		test/test_client.py::TestClient::test_service_name_from_kwargs
+		test/test_client.py::TestClient::test_srv_max_hosts_kwarg
+		test/test_dns.py::TestCaseInsensitive::test_connect_case_insensitive
+		test/asynchronous/test_dns.py::IsolatedAsyncioTestCaseInsensitive::test_connect_case_insensitive
+		test/test_srv_polling.py
+		test/asynchronous/test_srv_polling.py
+		test/test_uri_spec.py::TestAllScenarios::test_test_uri_options_srv-options_SRV_URI_with_custom_srvServiceName
+		test/test_uri_spec.py::TestAllScenarios::test_test_uri_options_srv-options_SRV_URI_with_invalid_type_for_srvMaxHosts
+		test/test_uri_spec.py::TestAllScenarios::test_test_uri_options_srv-options_SRV_URI_with_negative_integer_for_srvMaxHosts
+		test/test_uri_spec.py::TestAllScenarios::test_test_uri_options_srv-options_SRV_URI_with_positive_srvMaxHosts_and_loadBalanced=fa
+		test/test_uri_spec.py::TestAllScenarios::test_test_uri_options_srv-options_SRV_URI_with_srvMaxHosts
+		test/test_uri_spec.py::TestAllScenarios::test_test_uri_options_srv-options_SRV_URI_with_srvMaxHosts=0_and_loadBalanced=true
+		test/test_uri_spec.py::TestAllScenarios::test_test_uri_options_srv-options_SRV_URI_with_srvMaxHosts=0_and_replicaSet
+
+		# broken regularly by changes in mypy
+		test/test_typing.py::TestMypyFails::test_mypy_failures
+
+		# fragile to timing? fails because we're getting too many logs
+		test/test_connection_logging.py::TestConnectionLoggingConnectionPoolOptions::test_maxConnecting_should_be_included_in_connection_pool_created_message_when_specified
+
+		# hangs?
+		test/asynchronous/test_grid_file.py::AsyncTestGridFile::test_small_chunks
+
+		# broken async tests?
+		test/asynchronous/test_encryption.py
+
+		# -Werror
+		test/test_read_preferences.py::TestMongosAndReadPreference::test_read_preference_hedge_deprecated
+		test/asynchronous/test_read_preferences.py::TestMongosAndReadPreference::test_read_preference_hedge_deprecated
+
+		# fragile to timing? Internet?
+		test/test_client.py::TestClient::test_repr_srv_host
+		test/asynchronous/test_client.py::TestClient::test_repr_srv_host
+		test/asynchronous/test_ssl.py::TestSSL::test_pyopenssl_ignored_in_async
+	)
+
+	if ! use test-full; then
+		# .invalid is guaranteed to return NXDOMAIN per RFC 6761
+		local -x DB_IP=mongodb.invalid
+		epytest -p asyncio
+		return
+	fi
+
+	# Yes, we need TCP/IP for that...
+	local -x DB_IP=127.0.0.1
+	local -x DB_PORT=27000
+
+	local dbpath=${TMPDIR}/mongo.db
+	local logpath=${TMPDIR}/mongod.log
+
+	local failed=
+	mkdir -p "${dbpath}" || die
+	while true; do
+		ebegin "Trying to start mongod on port ${DB_PORT}"
+
+		# mongodb is extremely inefficient
+		# https://www.mongodb.com/docs/manual/reference/ulimit/#review-and-set-resource-limits
+		ulimit -n 64000 || die
+
+		local mongod_options=(
+			--dbpath "${dbpath}"
+			--bind_ip "${DB_IP}"
+			--port "${DB_PORT}"
+			--unixSocketPrefix "${TMPDIR}"
+			--logpath "${logpath}"
+			--fork
+
+			# try to reduce resource use
+			--wiredTigerCacheSizeGB 0.25
+		)
+
+		LC_ALL=C mongod "${mongod_options[@]}" && sleep 2
+
+		# Now we need to check if the server actually started...
+		if [[ ${?} -eq 0 && -S "${TMPDIR}"/mongodb-${DB_PORT}.sock ]]; then
+			# yay!
+			eend 0
+			break
+		elif grep -q 'Address already in use' "${logpath}"; then
+			# ay, someone took our port!
+			eend 1
+			: $(( DB_PORT += 1 ))
+			continue
+		else
+			eend 1
+			eerror "Unable to start mongod for tests. See the server log:"
+			eerror "	${logpath}"
+			die "Unable to start mongod for tests."
+		fi
+	done
+
+	nonfatal epytest -m "default or default_async or encryption" || failed=1
+
+	mongod --dbpath "${dbpath}" --shutdown || die
+
+	[[ ${failed} ]] && die "Tests fail with ${EPYTHON}"
+
+	rm -rf "${dbpath}" || die
+}