diff --git a/dev-libs/flatbuffers/Manifest b/dev-libs/flatbuffers/Manifest
index 1c5f1eb2ae61..271f84c8805a 100644
--- a/dev-libs/flatbuffers/Manifest
+++ b/dev-libs/flatbuffers/Manifest
@@ -1 +1,2 @@
+DIST flatbuffers-25.12.19.gh.tar.gz 2355743 BLAKE2B d06cce5a2c715d2859823161bab0c5b24e20f8cb20d45df25e66a51872ada981c61aa0e64145fe0073bc7b3a0a009de622b19e188f6e951a1d50f00fe39a9292 SHA512 808c77536fbfb1c8a1145506873a2b4e5cb508e48bf35f8502a2d1349b64e7581bfe7ff2f587b3edb2642cc885c60c0170a8875fad245240a1288057f4c07a42
 DIST flatbuffers-25.9.23.gh.tar.gz 2336210 BLAKE2B 9d5765a443dbed772e75183b6caaed8d38fb17b79426d514b287efabf930e5683e5f8a4e3120d327ce3879d19521cea7f4da6a98d1c3cb4e4b94cf0b8e00a253 SHA512 259ae6c0b024c19c882d87c93d6ba156c15f14a61b11846170ac1b9e9c051cd3e80ae93cfe20ccb1aa30f2085cdbd4127ffa229b42cabbfed6b035ca4851c127
diff --git a/dev-libs/flatbuffers/flatbuffers-25.12.19.ebuild b/dev-libs/flatbuffers/flatbuffers-25.12.19.ebuild
new file mode 100644
index 000000000000..cdd8e1c2f807
--- /dev/null
+++ b/dev-libs/flatbuffers/flatbuffers-25.12.19.ebuild
@@ -0,0 +1,33 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="Memory efficient serialization library"
+HOMEPAGE="
+	https://flatbuffers.dev/
+	https://github.com/google/flatbuffers/
+"
+SRC_URI="
+	https://github.com/google/flatbuffers/archive/v${PV}.tar.gz
+		-> ${P}.gh.tar.gz
+"
+
+LICENSE="Apache-2.0"
+SLOT="0/${PV}"
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~riscv ~x86"
+IUSE="static-libs test"
+RESTRICT="!test? ( test )"
+
+src_configure() {
+	local mycmakeargs=(
+		-DFLATBUFFERS_BUILD_FLATLIB=$(usex static-libs)
+		-DFLATBUFFERS_BUILD_SHAREDLIB=ON
+		-DFLATBUFFERS_BUILD_TESTS=$(usex test)
+		-DFLATBUFFERS_BUILD_BENCHMARKS=OFF
+	)
+
+	cmake_src_configure
+}