diff --git a/devel/Makefile b/devel/Makefile
--- a/devel/Makefile
+++ b/devel/Makefile
@@ -1346,6 +1346,7 @@
     SUBDIR += libjodycode
     SUBDIR += libk8055
     SUBDIR += libkiwix
+    SUBDIR += libkiwix13
     SUBDIR += libklel
     SUBDIR += liblangtag
     SUBDIR += liblnk
diff --git a/devel/libkiwix/Makefile b/devel/libkiwix/Makefile
--- a/devel/libkiwix/Makefile
+++ b/devel/libkiwix/Makefile
@@ -27,6 +27,8 @@
 		kainjow:Mustache:v4.1:mustache
 USE_LDCONFIG=	yes
 
+CONFLICTS_INSTALL=	libkiwix13
+
 SHEBANG_FILES=	scripts/format_code.sh
 SHEBANG_REGEX=	./scripts/kiwix.*[^.].
 
diff --git a/devel/libkiwix/Makefile b/devel/libkiwix13/Makefile
copy from devel/libkiwix/Makefile
copy to devel/libkiwix13/Makefile
--- a/devel/libkiwix/Makefile
+++ b/devel/libkiwix13/Makefile
@@ -1,9 +1,10 @@
 PORTNAME=	libkiwix
 DISTVERSION=	13.1.0
 CATEGORIES=	devel
+PKGNAMESUFFIX=	13
 
 MAINTAINER=	olce.freebsd.ports@certner.fr
-COMMENT=	Common code base for all Kiwix ports
+COMMENT=	Common code base for all Kiwix ports, version 13
 WWW=		https://www.kiwix.org/
 
 LICENSE=	GPLv3+
@@ -27,6 +28,8 @@
 		kainjow:Mustache:v4.1:mustache
 USE_LDCONFIG=	yes
 
+CONFLICTS_INSTALL=	libkiwix
+
 SHEBANG_FILES=	scripts/format_code.sh
 SHEBANG_REGEX=	./scripts/kiwix.*[^.].
 
diff --git a/devel/libkiwix13/distinfo b/devel/libkiwix13/distinfo
new file mode 100644
--- /dev/null
+++ b/devel/libkiwix13/distinfo
@@ -0,0 +1,5 @@
+TIMESTAMP = 1716196790
+SHA256 (kiwix-libkiwix-13.1.0_GH0.tar.gz) = 04d93f66b939f937df2c941af517966128d4c9872b707f9ed192177fe51364d3
+SIZE (kiwix-libkiwix-13.1.0_GH0.tar.gz) = 1136812
+SHA256 (kainjow-Mustache-v4.1_GH0.tar.gz) = acd66359feb4318b421f9574cfc5a511133a77d916d0b13c7caa3783c0bfe167
+SIZE (kainjow-Mustache-v4.1_GH0.tar.gz) = 98905
diff --git a/devel/libkiwix13/files/patch-meson.build b/devel/libkiwix13/files/patch-meson.build
new file mode 100644
--- /dev/null
+++ b/devel/libkiwix13/files/patch-meson.build
@@ -0,0 +1,52 @@
+Has been upstreamed via https://github.com/kiwix/libkiwix/pull/1173 and will be
+included in next release (14.1.0), so remove this patch at next update.
+
+--- meson.build.orig	2024-10-09 17:18:52 UTC
++++ meson.build
+@@ -4,14 +4,40 @@ compiler = meson.get_compiler('cpp')
+   default_options : ['c_std=c11', 'cpp_std=c++17', 'werror=true'])
+ 
+ compiler = meson.get_compiler('cpp')
+-
+ static_deps = get_option('static-linkage') or get_option('default_library') == 'static'
++extra_libs = []
+ 
+-# See https://github.com/kiwix/libkiwix/issues/371
+-if ['arm', 'mips', 'm68k', 'ppc', 'sh4'].contains(host_machine.cpu_family())
+-  extra_libs = ['-latomic']
+-else
+-  extra_libs = []
++# Atomics as compiled by GCC or clang can lead to external references to
++# functions depending on the type size and the platform. LLVM provides them in
++# 'libcompiler_rt', which clang normally automatically links in, while GNU
++# provides them in 'libatomic', which GCC *does not* link in automatically (but
++# this is probably going to change, see
++# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81358). Regardless of the setup
++# of the compiler driver itself (GCC or clang), we can thus assume that if some
++# atomic references can't be resolved, then 'libatomic' is missing.
++atomics_program = '''
++#include <atomic>
++#include <cstdint>
++
++using namespace std;
++
++int main() {
++  volatile atomic_bool a_b = true;
++  volatile atomic_ullong a_ull = -1;
++  // Next two lines are to cover atomic<socket_t> from 'httplib.h'.
++  volatile atomic<uint32_t> a_u32 = -1;
++  volatile atomic<uint64_t> a_u64 = -1;
++
++  return atomic_load(&a_b) == false && atomic_load(&a_ull) == 0 &&
++    atomic_load(&a_u32) == 0 && atomic_load(&a_u64) == 0;
++}
++'''
++if not compiler.links(atomics_program,
++                      name: 'compiler driver readily supports atomics')
++  libatomic = compiler.find_library('atomic')
++  compiler.links(atomics_program, name: 'atomics work with libatomic',
++                 dependencies: libatomic, required: true)
++  extra_libs += ['-latomic']
+ endif
+ 
+ if (compiler.get_id() == 'gcc' and build_machine.system() == 'linux') or host_machine.system() == 'freebsd'
diff --git a/devel/libkiwix13/pkg-descr b/devel/libkiwix13/pkg-descr
new file mode 100644
--- /dev/null
+++ b/devel/libkiwix13/pkg-descr
@@ -0,0 +1,7 @@
+Kiwix is an offline reader for web content archived in ZIM format. It is
+particularly tailored towards Wikipedia and other wikis.
+
+The Kiwix library contains the code shared by Kiwix ports on all supported
+platforms.
+
+This is version 13, which is required by kiwix-tools 3.7.
diff --git a/devel/libkiwix13/pkg-plist b/devel/libkiwix13/pkg-plist
new file mode 100644
--- /dev/null
+++ b/devel/libkiwix13/pkg-plist
@@ -0,0 +1,21 @@
+bin/kiwix-compile-i18n
+bin/kiwix-compile-resources
+include/kiwix/book.h
+include/kiwix/bookmark.h
+include/kiwix/common.h
+include/kiwix/downloader.h
+include/kiwix/kiwix_config.h
+include/kiwix/kiwixserve.h
+include/kiwix/library.h
+include/kiwix/manager.h
+include/kiwix/name_mapper.h
+include/kiwix/search_renderer.h
+include/kiwix/server.h
+include/kiwix/tools.h
+include/kiwix/version.h
+lib/libkiwix.so
+lib/libkiwix.so.%%PORTMAJ%%
+lib/libkiwix.so.%%PORTVERSION%%
+libdata/pkgconfig/kiwix.pc
+share/man/man1/kiwix-compile-i18n.1.gz
+share/man/man1/kiwix-compile-resources.1.gz