diff --git a/pkgs/development/compilers/gcc/common/dependencies.nix b/pkgs/development/compilers/gcc/common/dependencies.nix
index a38cdcb9e20f..fd9036c23ac6 100644
--- a/pkgs/development/compilers/gcc/common/dependencies.nix
+++ b/pkgs/development/compilers/gcc/common/dependencies.nix
@@ -15,6 +15,7 @@
 , libucontext ? null
 , libxcrypt ? null
 , cloog ? null
+, darwin ? null
 , isl ? null
 , zlib ? null
 , gnat-bootstrap ? null
@@ -85,6 +86,7 @@ in
   ++ optionals langJava [ boehmgc zip unzip ]
   ++ optionals javaAwtGtk ([ gtk2 libart_lgpl ] ++ xlibs)
   ++ optionals (langGo && stdenv.hostPlatform.isMusl) [ libucontext ]
+  ++ optionals (lib.versionAtLeast version "14" && stdenv.hostPlatform.isDarwin) [ darwin.apple_sdk.frameworks.CoreServices ]
   ;
 
   # threadsCross.package after gcc6 so i assume its okay for 4.8 and 4.9 too
diff --git a/pkgs/development/compilers/gcc/default.nix b/pkgs/development/compilers/gcc/default.nix
index c3a0efe6aaa1..5e017a21fa1f 100644
--- a/pkgs/development/compilers/gcc/default.nix
+++ b/pkgs/development/compilers/gcc/default.nix
@@ -70,6 +70,7 @@ let
   version = gccVersions.fromMajorMinor majorMinorVersion;
 
   majorVersion = versions.major version;
+  atLeast14 = versionAtLeast version "14";
   atLeast13 = versionAtLeast version "13";
   atLeast12 = versionAtLeast version "12";
   atLeast11 = versionAtLeast version "11";
@@ -79,6 +80,7 @@ let
   atLeast7  = versionAtLeast version  "7";
   atLeast6  = versionAtLeast version  "6";
   atLeast49 = versionAtLeast version  "4.9";
+  is14 = majorVersion == "14";
   is13 = majorVersion == "13";
   is12 = majorVersion == "12";
   is11 = majorVersion == "11";
@@ -127,6 +129,7 @@ let
         buildPackages
         cloog
         withoutTargetLibc
+        darwin
         disableBootstrap
         disableGdbPlugin
         enableLTO
diff --git a/pkgs/development/compilers/gcc/patches/14/gcc-darwin-remove-coreservices.patch b/pkgs/development/compilers/gcc/patches/14/gcc-darwin-remove-coreservices.patch
new file mode 100644
index 000000000000..9d21a3c4c438
--- /dev/null
+++ b/pkgs/development/compilers/gcc/patches/14/gcc-darwin-remove-coreservices.patch
@@ -0,0 +1,39 @@
+diff --git a/config/intlmacosx.m4 b/config/intlmacosx.m4
+index 3141bf8c5..7a31862b9 100644
+--- a/config/intlmacosx.m4
++++ b/config/intlmacosx.m4
+@@ -63,7 +63,7 @@ AC_DEFUN([gt_INTL_MACOSX],
+     dnl and we have to link it in explicitly, otherwise an exception
+     dnl NSInvalidArgumentException "unrecognized selector sent to instance"
+     dnl occurs.
+-    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation -Wl,-framework -Wl,CoreServices"
++    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
+   fi
+   AC_SUBST([INTL_MACOSX_LIBS])
+ ])
+diff --git a/gcc/configure b/gcc/configure
+index 23da7d55d..8bd09364d 100755
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -13932,7 +13932,7 @@ $as_echo "#define HAVE_CFLOCALECOPYPREFERREDLANGUAGES 1" >>confdefs.h
+   INTL_MACOSX_LIBS=
+   if test $gt_cv_func_CFPreferencesCopyAppValue = yes \
+      || test $gt_cv_func_CFLocaleCopyPreferredLanguages = yes; then
+-                    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation -Wl,-framework -Wl,CoreServices"
++                    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
+   fi
+ 
+ 
+diff --git a/libcpp/configure b/libcpp/configure
+index 32d6aaa30..592c33881 100755
+--- a/libcpp/configure
++++ b/libcpp/configure
+@@ -7570,7 +7570,7 @@ $as_echo "#define HAVE_CFLOCALECOPYPREFERREDLANGUAGES 1" >>confdefs.h
+   INTL_MACOSX_LIBS=
+   if test $gt_cv_func_CFPreferencesCopyAppValue = yes \
+      || test $gt_cv_func_CFLocaleCopyPreferredLanguages = yes; then
+-                    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation -Wl,-framework -Wl,CoreServices"
++                    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
+   fi
+ 
+ 
diff --git a/pkgs/development/compilers/gcc/patches/14/gnat-darwin-dylib-install-name-14.patch b/pkgs/development/compilers/gcc/patches/14/gnat-darwin-dylib-install-name-14.patch
new file mode 100644
index 000000000000..195f7b10c348
--- /dev/null
+++ b/pkgs/development/compilers/gcc/patches/14/gnat-darwin-dylib-install-name-14.patch
@@ -0,0 +1,21 @@
+diff --git a/gcc/ada/gcc-interface/Makefile.in b/gcc/ada/gcc-interface/Makefile.in
+index 0666fc00b..0e2d53eb8 100644
+--- a/gcc/ada/gcc-interface/Makefile.in
++++ b/gcc/ada/gcc-interface/Makefile.in
+@@ -793,14 +793,14 @@ gnatlib-shared-darwin:
+ 		-o libgnat$(hyphen)$(LIBRARY_VERSION)$(soext) \
+ 		$(GNATRTL_NONTASKING_OBJS) $(LIBGNAT_OBJS) \
+ 		$(SO_OPTS) \
+-		-Wl,-install_name,@rpath/libgnat$(hyphen)$(LIBRARY_VERSION)$(soext) \
++		-Wl,-install_name,$(ADA_RTL_DSO_DIR)/libgnat$(hyphen)$(LIBRARY_VERSION)$(soext) \
+ 		-nodefaultrpaths -Wl,-rpath,@loader_path/,-rpath,@loader_path/.. \
+ 		-Wl,-rpath,@loader_path/../../../../ $(MISCLIB)
+ 	cd $(RTSDIR); $(GCC_FOR_ADA_RTS) -dynamiclib $(PICFLAG_FOR_TARGET) \
+ 		-o libgnarl$(hyphen)$(LIBRARY_VERSION)$(soext) \
+ 		$(GNATRTL_TASKING_OBJS) \
+ 		$(SO_OPTS) \
+-		-Wl,-install_name,@rpath/libgnarl$(hyphen)$(LIBRARY_VERSION)$(soext) \
++		-Wl,-install_name,$(ADA_RTL_DSO_DIR)/libgnarl$(hyphen)$(LIBRARY_VERSION)$(soext) \
+ 		-nodefaultrpaths -Wl,-rpath,@loader_path/,-rpath,@loader_path/.. \
+ 		-Wl,-rpath,@loader_path/../../../../ \
+ 		$(THREADSLIB) -Wl,libgnat$(hyphen)$(LIBRARY_VERSION)$(soext)
diff --git a/pkgs/development/compilers/gcc/patches/14/libgcc-darwin-detection.patch b/pkgs/development/compilers/gcc/patches/14/libgcc-darwin-detection.patch
new file mode 100644
index 000000000000..27d455aa58b6
--- /dev/null
+++ b/pkgs/development/compilers/gcc/patches/14/libgcc-darwin-detection.patch
@@ -0,0 +1,12 @@
+diff -u a/libgcc/config.host b/libgcc/config.host
+--- a/libgcc/config.host	2023-11-05 11:01:55.778638446 -0500
++++ b/libgcc/config.host	2023-11-05 11:07:29.405103979 -0500
+@@ -227,7 +227,7 @@
+   tmake_file="$tmake_file t-slibgcc-darwin"
+   # newer toolsets produce warnings when building for unsupported versions.
+   case ${host} in
+-    *-*-darwin1[89]* | *-*-darwin2* )
++    *-*-darwin1[89]* | *-*-darwin2* | *-*-darwin)
+       tmake_file="t-darwin-min-8 $tmake_file"
+       ;;
+     *-*-darwin9* | *-*-darwin1[0-7]*)
diff --git a/pkgs/development/compilers/gcc/patches/default.nix b/pkgs/development/compilers/gcc/patches/default.nix
index 8f0c8f6d288c..13b4bcbf6f8c 100644
--- a/pkgs/development/compilers/gcc/patches/default.nix
+++ b/pkgs/development/compilers/gcc/patches/default.nix
@@ -25,6 +25,7 @@
 }:
 
 let
+  atLeast14 = lib.versionAtLeast version "14";
   atLeast13 = lib.versionAtLeast version "13";
   atLeast12 = lib.versionAtLeast version "12";
   atLeast11 = lib.versionAtLeast version "11";
@@ -34,6 +35,7 @@ let
   atLeast7  = lib.versionAtLeast version  "7";
   atLeast6  = lib.versionAtLeast version  "6";
   atLeast49 = lib.versionAtLeast version  "4.9";
+  is14 = majorVersion == "14";
   is13 = majorVersion == "13";
   is12 = majorVersion == "12";
   is11 = majorVersion == "11";
@@ -63,6 +65,7 @@ in
 ++ optionals (noSysDirs) (
   [(if atLeast12 then ./gcc-12-no-sys-dirs.patch else ./no-sys-dirs.patch)] ++
   ({
+    "14" = [ ./13/no-sys-dirs-riscv.patch ./13/mangle-NIX_STORE-in-__FILE__.patch ];
     "13" = [ ./13/no-sys-dirs-riscv.patch ./13/mangle-NIX_STORE-in-__FILE__.patch ];
     "12" = [ ./no-sys-dirs-riscv.patch ./12/mangle-NIX_STORE-in-__FILE__.patch ];
     "11" = [ ./no-sys-dirs-riscv.patch ];
@@ -124,11 +127,18 @@ in
 
 ## Darwin
 
+# Fixes detection of Darwin on x86_64-darwin. Otherwise, GCC uses a deployment target of 10.5, which crashes ld64.
+++ optional (atLeast14 && stdenv.isDarwin && stdenv.isx86_64) ../patches/14/libgcc-darwin-detection.patch
+
 # Fix detection of bootstrap compiler Ada support (cctools as) on Nix Darwin
 ++ optional (atLeast12 && stdenv.isDarwin && langAda) ./ada-cctools-as-detection-configure.patch
 
+# Remove CoreServices on Darwin, as it is only needed for macOS SDK 14+
+++ optional (atLeast14 && stdenv.isDarwin && langAda) ../patches/14/gcc-darwin-remove-coreservices.patch
+
 # Use absolute path in GNAT dylib install names on Darwin
 ++ optionals (stdenv.isDarwin && langAda) ({
+  "14" = [ ../patches/14/gnat-darwin-dylib-install-name-14.patch ];
   "13" = [ ./gnat-darwin-dylib-install-name-13.patch ];
   "12" = [ ./gnat-darwin-dylib-install-name.patch ];
 }.${majorVersion} or [])
@@ -136,6 +146,11 @@ in
 # We only apply this patch when building a native toolchain for aarch64-darwin, as it breaks building
 # a foreign one: https://github.com/iains/gcc-12-branch/issues/18
 ++ optionals (stdenv.isDarwin && stdenv.isAarch64 && buildPlatform == hostPlatform && hostPlatform == targetPlatform) ({
+  "14" = [ (fetchpatch {
+    name = "gcc-14-darwin-aarch64-support.patch";
+    url = "https://raw.githubusercontent.com/Homebrew/formula-patches/82b5c1cd38826ab67ac7fc498a8fe74376a40f4a/gcc/gcc-14.1.0.diff";
+    sha256 = "sha256-jCY65l1DGdESNyzEmD8FFC/xMmqeqBIQF+BhT4uTBBU=";
+  }) ];
   "13" = [ (fetchpatch {
     name = "gcc-13-darwin-aarch64-support.patch";
     url = "https://raw.githubusercontent.com/Homebrew/formula-patches/3c5cbc8e9cf444a1967786af48e430588e1eb481/gcc/gcc-13.2.0.diff";
diff --git a/pkgs/development/compilers/gcc/versions.nix b/pkgs/development/compilers/gcc/versions.nix
index 261ffc634544..90c4949b19ea 100644
--- a/pkgs/development/compilers/gcc/versions.nix
+++ b/pkgs/development/compilers/gcc/versions.nix
@@ -1,5 +1,6 @@
 let
   majorMinorToVersionMap = {
+    "14" = "14.1.0";
     "13" = "13.2.0";
     "12" = "12.3.0";
     "11" = "11.4.0";
@@ -19,6 +20,7 @@ let
   srcHashForVersion = version: {
     # NOTE: there is no need to remove hashes of obsolete minor
     # versions when adding a new minor version.
+    "14.1.0" = "sha256-4oPGVJh6/j3p2AgLwL15U0tcoNaBpzoR/ytdN2dCaEA=";
     "13.2.0" = "sha256-4nXnZEKmBnNBon8Exca4PYYTFEAEwEE1KIY9xrXHQ9o=";
     "12.3.0" = "sha256-lJpdT5nnhkIak7Uysi/6tVeN5zITaZdbka7Jet/ajDs=";
     "11.4.0" = "sha256-Py2yIrAH6KSiPNW6VnJu8I6LHx6yBV7nLBQCzqc6jdk=";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3a8937f359a7..f10e3fb6c2a0 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15487,6 +15487,7 @@ with pkgs;
   gcc11Stdenv = overrideCC gccStdenv buildPackages.gcc11;
   gcc12Stdenv = overrideCC gccStdenv buildPackages.gcc12;
   gcc13Stdenv = overrideCC gccStdenv buildPackages.gcc13;
+  gcc14Stdenv = overrideCC gccStdenv buildPackages.gcc14;
 
   # This is not intended for use in nixpkgs but for providing a faster-running
   # compiler to nixpkgs users by building gcc with reproducibility-breaking
@@ -15577,9 +15578,9 @@ with pkgs;
   };
 
   inherit (callPackage ../development/compilers/gcc/all.nix { inherit noSysDirs; })
-    gcc48 gcc49 gcc6 gcc7 gcc8 gcc9 gcc10 gcc11 gcc12 gcc13;
+    gcc48 gcc49 gcc6 gcc7 gcc8 gcc9 gcc10 gcc11 gcc12 gcc13 gcc14;
 
-  gcc_latest = gcc13;
+  gcc_latest = gcc14;
 
   # Use the same GCC version as the one from stdenv by default
   gfortran = wrapCC (gcc.cc.override {
@@ -15670,6 +15671,14 @@ with pkgs;
     profiledCompiler = false;
   });
 
+  gfortran14 = wrapCC (gcc14.cc.override {
+    name = "gfortran";
+    langFortran = true;
+    langCC = false;
+    langC = false;
+    profiledCompiler = false;
+  });
+
   libgccjit = gcc.cc.override {
     name = "libgccjit";
     langFortran = false;
@@ -15763,6 +15772,29 @@ with pkgs;
       else stdenv;
   });
 
+  gnat14 = wrapCC (gcc14.cc.override {
+    name = "gnat";
+    langC = true;
+    langCC = false;
+    langAda = true;
+    profiledCompiler = false;
+    # As per upstream instructions building a cross compiler
+    # should be done with a (native) compiler of the same version.
+    # If we are cross-compiling GNAT, we may as well do the same.
+    gnat-bootstrap =
+      if stdenv.hostPlatform == stdenv.targetPlatform
+         && stdenv.buildPlatform == stdenv.hostPlatform
+      then buildPackages.gnat-bootstrap12
+      else buildPackages.gnat13;
+    stdenv =
+      if stdenv.hostPlatform == stdenv.targetPlatform
+         && stdenv.buildPlatform == stdenv.hostPlatform
+         && stdenv.buildPlatform.isDarwin
+         && stdenv.buildPlatform.isx86_64
+      then overrideCC stdenv gnat-bootstrap12
+      else stdenv;
+  });
+
   gnat-bootstrap = gnat-bootstrap12;
   gnat-bootstrap11 = wrapCC (callPackage ../development/compilers/gnat-bootstrap { majorVersion = "11"; });
   gnat-bootstrap12 = wrapCCWith ({
@@ -15817,6 +15849,18 @@ with pkgs;
     meta.broken = stdenv.hostPlatform.isDarwin;
   });
 
+  gccgo14 = wrapCC (gcc14.cc.override {
+    name = "gccgo";
+    langCC = true; #required for go.
+    langC = true;
+    langGo = true;
+    langJit = true;
+    profiledCompiler = false;
+  } // {
+    # not supported on darwin: https://github.com/golang/go/issues/463
+    meta.broken = stdenv.hostPlatform.isDarwin;
+  });
+
   ghdl = ghdl-mcode;
 
   ghdl-mcode = callPackage ../development/compilers/ghdl {