diff --git a/.gitattributes b/.gitattributes
index b0e85e9b5b..4591b731f6 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1118,6 +1118,7 @@ tools/apiwizz/apiwizard.lrs svneol=native#text/pascal
 tools/apiwizz/apiwizard.pp svneol=native#text/pascal
 tools/apiwizz/apiwizz.pp svneol=native#text/pascal
 tools/check_ide_libs.sh -text svneol=native#application/x-sh
+tools/copy_po_files_to_lazarus_sources.sh -text svneol=native#application/x-sh
 tools/cvs2cl.pl -text svneol=native#application/x-perl
 tools/install/build_fpc_rpm.sh -text svneol=native#application/x-sh
 tools/install/build_fpcsrc_rpm.sh -text svneol=native#application/x-sh
diff --git a/tools/copy_po_files_to_lazarus_sources.sh b/tools/copy_po_files_to_lazarus_sources.sh
new file mode 100644
index 0000000000..122155b112
--- /dev/null
+++ b/tools/copy_po_files_to_lazarus_sources.sh
@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+#
+# Author: Mattias Gaertner
+#
+# Usage:
+#   copy_po_files_to_lazarus_sources.sh LazarusSrcDir file1.po [file2.po] ...
+#
+# Copies a set of localized .po files to the right location in the lazarus
+# source directory.
+
+#set -x
+set -e
+
+Usage="$0 LazarusSrcDir file1.po [file2.po] ..."
+
+# get and check lazarus source dir
+LazarusSrcDir=$1
+if [ ! -d "$LazarusSrcDir" ]; then
+  echo $Usage
+  exit
+fi
+echo LazarusSrcDir=$LazarusSrcDir
+if [ ! -d "$LazarusSrcDir/lcl/languages" ]; then
+  echo Error: $LazarusSrcDir does not look like the Lazarus Source Directory
+  exit
+fi
+shift
+
+# check and copy all .po files to the right directories
+POFiles=$@
+for POFile in $POFiles; do
+  echo $POFile
+
+  # check if .po file exists
+  if [ ! -f "$POFile" ]; then
+    echo Error: $POFile not found
+    exit
+  fi
+
+  # check if .po file format file.lang.po
+  FileOk=`echo $POFile | sed -e 's/.*\..*\.po$/ok/'`
+  if [ "$FileOk" != "ok" ]; then
+    echo "Error: $POFile invalid  (expected format: file.lang.po)"
+    exit
+  fi
+
+  # check if .po file has corresponding base file
+  BasePOFile=`echo $POFile | sed -e 's/\(.*\)\..*\(\.po\)$/\1\2/'`
+  BasePOFile=`basename $BasePOFile`
+  FoundPOFile=`find $LazarusSrcDir -name $BasePOFile`
+  if [ ! -f "$FoundPOFile" ]; then
+    echo "Error: base .po file not found: $BasePOFile"
+    exit
+  fi
+
+  # copy the .po file to the same directory as the base .po file
+  DestDir=`dirname $FoundPOFile`
+  echo "  -> $DestDir/"
+  cp $POFile $DestDir/
+done
+
+# end.
+