diff --git a/textproc/Makefile b/textproc/Makefile
--- a/textproc/Makefile
+++ b/textproc/Makefile
@@ -1529,6 +1529,7 @@
     SUBDIR += py-qrcode
     SUBDIR += py-rdflib
     SUBDIR += py-readchar
+    SUBDIR += py-readthedocs-sphinx-ext
     SUBDIR += py-readtime
     SUBDIR += py-recommonmark
     SUBDIR += py-regex
diff --git a/textproc/py-readthedocs-sphinx-ext/Makefile b/textproc/py-readthedocs-sphinx-ext/Makefile
new file mode 100644
--- /dev/null
+++ b/textproc/py-readthedocs-sphinx-ext/Makefile
@@ -0,0 +1,29 @@
+PORTNAME=	readthedocs-sphinx-ext
+DISTVERSION=	2.2.5
+CATEGORIES=	textproc python
+PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
+
+MAINTAINER=	agh@riseup.net
+COMMENT=	Sphinx extension for Read the Docs overrides
+WWW=		https://pypi.org/project/readthedocs-sphinx-ext
+
+LICENSE=	MIT
+LICENSE_FILE=	${WRKSRC}/LICENSE
+
+BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}setuptools>0:devel/py-setuptools@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}wheel>0:devel/py-wheel@${PY_FLAVOR}
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}wheel>0:devel/py-wheel@${PY_FLAVOR}
+TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}Jinja2>0:devel/py-Jinja2@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}prospector>0:devel/py-prospector@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}sphinx>0:textproc/py-sphinx@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}tox>0:devel/py-tox@${PY_FLAVOR} \
+		pylint${PYTHON_PKGNAMESUFFIX}>0:devel/pylint
+
+USES=		python
+USE_GITHUB=	yes
+GH_ACCOUNT=	readthedocs
+USE_PYTHON=	autoplist pep517 pytest
+
+NO_ARCH=	yes
+
+.include <bsd.port.mk>
diff --git a/textproc/py-readthedocs-sphinx-ext/distinfo b/textproc/py-readthedocs-sphinx-ext/distinfo
new file mode 100644
--- /dev/null
+++ b/textproc/py-readthedocs-sphinx-ext/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1705552809
+SHA256 (readthedocs-readthedocs-sphinx-ext-2.2.5_GH0.tar.gz) = 440570ad16900674931dd4a24843a4af8476ccffae460823be5e8efcb423774d
+SIZE (readthedocs-readthedocs-sphinx-ext-2.2.5_GH0.tar.gz) = 11483
diff --git a/textproc/py-readthedocs-sphinx-ext/pkg-descr b/textproc/py-readthedocs-sphinx-ext/pkg-descr
new file mode 100644
--- /dev/null
+++ b/textproc/py-readthedocs-sphinx-ext/pkg-descr
@@ -0,0 +1,10 @@
+Read the Docs Sphinx Extensions
+
+The Sphinx extension that make Sphinx easier to use. Some extensions require
+Read the Docs features, others are just extensions that and enabled during
+builds of Read the Docs.
+
+Currently packaged extensions include:
+ * An extension for building documentation like readthedocs.io. fame
+ * template-meta, allows users to specify template overrides in per-page
+   context.