diff --git a/dev-ml/merlin/Manifest b/dev-ml/merlin/Manifest
index 12b74679d8821..3714fde4055e4 100644
--- a/dev-ml/merlin/Manifest
+++ b/dev-ml/merlin/Manifest
@@ -1 +1,2 @@
 DIST merlin-4.12-414.tbz 1991877 BLAKE2B d68a45efb29d7ed2dd8d2e377a7778fad5500064206e5ae27914a0be9f208f919f44f73f14be283aca653adf56462a782c4f5f895282e078478e60f13e9c09f1 SHA512 3bf4f5e4754def9818ce0abbdf2253fe9d5e0abec7e8814012e2ff9de6a174f288c257780eb9f8aa4d794c0b62a524848d579d2a3495a5747a0970ee9fbfff29
+DIST merlin-4.13-414.tbz 1993752 BLAKE2B 8b5704252f771ddac843340bf2aa24f62a2b490f6bb03c46a1daa2560fae72226b92fb5a9720b18c82f476571e7e6ffc7c30e695c8a0e1a3de6bd65ee58461e1 SHA512 cf7e292a515122756bd614eedbf11cc09108e6afab77cd5805428207b3ca5a98494ee43ad59fcfb667b48fe0874f0a8359882b3c14ee270769f99c41e176d455
diff --git a/dev-ml/merlin/merlin-4.13.ebuild b/dev-ml/merlin/merlin-4.13.ebuild
new file mode 100644
index 0000000000000..80b96bc1404a9
--- /dev/null
+++ b/dev-ml/merlin/merlin-4.13.ebuild
@@ -0,0 +1,101 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# TODO: vim-plugin, although it's not clear how to make it work here
+inherit elisp-common dune
+
+DESCRIPTION="Context sensitive completion for OCaml in Vim and Emacs"
+HOMEPAGE="https://github.com/ocaml/merlin/"
+SRC_URI="https://github.com/ocaml/merlin/releases/download/v${PV}-414/${P}-414.tbz"
+
+LICENSE="MIT"
+SLOT="0/${PV}"
+KEYWORDS="~amd64"
+IUSE="emacs +ocamlopt test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	dev-lang/ocaml:=[ocamlopt?]
+	dev-ml/csexp:=
+	>=dev-ml/yojson-2.0.0:=
+	dev-ml/menhir:=
+	>=dev-ml/dune-2.9:=
+	|| (
+		dev-lang/ocaml:0/4.14
+		dev-lang/ocaml:0/4.14.1
+	)
+	emacs? (
+		>=app-editors/emacs-23.1:*
+		app-emacs/auto-complete
+		app-emacs/company-mode
+	)
+"
+DEPEND="${RDEPEND}"
+# NOTICE: Block dev-ml/seq (which is a back-port of code to ocaml <4.07)
+# because it breaks merlin builds.
+# https://github.com/ocaml/merlin/issues/1500
+BDEPEND="
+	!!<dev-ml/seq-0.3
+	test? (
+		app-misc/jq
+	)
+"
+
+SITEFILE="50${PN}-gentoo.el"
+
+src_unpack() {
+	default
+
+	if has_version "dev-lang/ocaml:0/4.14" ; then
+		mv ${P}-414 "${S}" || die
+	elif has_version "dev-lang/ocaml:0/4.14.1" ; then
+		mv ${P}-414 "${S}" || die
+	fi
+}
+
+src_prepare() {
+	default
+
+	# Handle ELisp installation via the Emacs Eclass.
+	rm emacs/dune || die
+
+	# This test runs only inside a git repo,
+	# it is not included in merlin release for ocaml 4.12.
+	if [[ -f tests/test-dirs/occurrences/issue1404.t ]] ; then
+		rm tests/test-dirs/occurrences/issue1404.t || die
+	fi
+	rm -r tests/test-dirs/locate/context-detection/cd-mod_constr.t || die
+
+	# Remove seq references from dune build files.
+	sed -i 's|seq||g' src/frontend/ocamlmerlin/dune || die
+}
+
+src_compile() {
+	edune build --display=short @install
+
+	if use emacs ; then
+		# iedit isn't packaged yet
+		rm emacs/merlin-iedit.el || die
+
+		BYTECOMPFLAGS="-L emacs" elisp-compile emacs/*.el
+	fi
+}
+
+src_install() {
+	dune_src_install
+
+	if use emacs ; then
+		elisp-install ${PN} emacs/*.el{,c}
+		elisp-site-file-install "${FILESDIR}/${SITEFILE}"
+	fi
+}
+
+pkg_postinst() {
+	use emacs && elisp-site-regen
+}
+
+pkg_postrm() {
+	use emacs && elisp-site-regen
+}