diff --git a/textproc/Makefile b/textproc/Makefile
index d43852aebce5..bc61dd3c2cc0 100644
--- a/textproc/Makefile
+++ b/textproc/Makefile
@@ -1591,6 +1591,7 @@
     SUBDIR += py-rich-cli
     SUBDIR += py-rich-rst
     SUBDIR += py-rnc2rng
+    SUBDIR += py-roman-numerals-py
     SUBDIR += py-rst2ansi
     SUBDIR += py-rst2html5
     SUBDIR += py-scour
diff --git a/textproc/py-roman-numerals-py/Makefile b/textproc/py-roman-numerals-py/Makefile
new file mode 100644
index 000000000000..600928543033
--- /dev/null
+++ b/textproc/py-roman-numerals-py/Makefile
@@ -0,0 +1,25 @@
+PORTNAME=	roman-numerals-py
+DISTVERSION=	3.0.0
+CATEGORIES=	textproc python
+MASTER_SITES=	PYPI
+PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
+DISTNAME=	${PORTNAME:S/-/_/g}-${PORTVERSION}
+
+MAINTAINER=	agh@riseup.net
+COMMENT=	Manipulate well-formed Roman numerals
+WWW=		https://pypi.org/project/roman-numerals-py/
+
+LICENSE=	BSD0CLAUSE CC0-1.0
+LICENSE_COMB=	multi
+LICENSE_FILE=	${WRKSRC}/LICENCE.rst
+
+TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest>=8:devel/py-pytest@${PY_FLAVOR}
+
+USES=		python
+USE_PYTHON=	autoplist concurrent pep517 pytest
+PEP517_BUILD_DEPEND=	${PYTHON_PKGNAMEPREFIX}flit-core>=3.7<4:devel/py-flit-core@${PY_FLAVOR}
+PEP517_BUILD_CMD=	${PYTHON_CMD} -m flit_core.wheel
+
+NO_ARCH=	yes
+
+.include <bsd.port.mk>
diff --git a/textproc/py-roman-numerals-py/distinfo b/textproc/py-roman-numerals-py/distinfo
new file mode 100644
index 000000000000..06ba6cf39cf2
--- /dev/null
+++ b/textproc/py-roman-numerals-py/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1739958114
+SHA256 (roman_numerals_py-3.0.0.tar.gz) = 91199c4373658c03d87d9fe004f4a5120a20f6cb192be745c2377cce274ef41c
+SIZE (roman_numerals_py-3.0.0.tar.gz) = 8970
diff --git a/textproc/py-roman-numerals-py/pkg-descr b/textproc/py-roman-numerals-py/pkg-descr
new file mode 100644
index 000000000000..0a9b4e17b1db
--- /dev/null
+++ b/textproc/py-roman-numerals-py/pkg-descr
@@ -0,0 +1,14 @@
+A library for manipulating well-formed Roman numerals.
+
+Integers between 1 and 3,999 (inclusive) are supported. Numbers beyond this
+range will return an OutOfRangeError.
+
+The classical system of roman numerals requires that the same character may
+not appear more than thrice consecutively, meaning that 'MMMCMXCIX' (3,999)
+is the largest well-formed Roman numeral. The smallest is 'I' (1), as there
+is no symbol for zero in Roman numerals.
+
+Both upper- and lower-case formatting of roman numerals are supported, and
+likewise for parsing strings, although the entire string must be of the same
+case. Numerals that do not adhere to the classical form are rejected with an
+InvalidRomanNumeralError.