diff --git a/Help/manual/cmake-variables.7.rst b/Help/manual/cmake-variables.7.rst
index f026ac88ad..e03c64f43c 100644
--- a/Help/manual/cmake-variables.7.rst
+++ b/Help/manual/cmake-variables.7.rst
@@ -818,6 +818,7 @@ Variables for CTest
    /variable/CTEST_RESOURCE_SPEC_FILE
    /variable/CTEST_RUN_CURRENT_SCRIPT
    /variable/CTEST_SCRIPT_DIRECTORY
+   /variable/CTEST_SCRIPT_NAME
    /variable/CTEST_SITE
    /variable/CTEST_SOURCE_DIRECTORY
    /variable/CTEST_SUBMIT_INACTIVITY_TIMEOUT
diff --git a/Help/variable/CTEST_SCRIPT_DIRECTORY.rst b/Help/variable/CTEST_SCRIPT_DIRECTORY.rst
index 77d4e58c93..59e2c39045 100644
--- a/Help/variable/CTEST_SCRIPT_DIRECTORY.rst
+++ b/Help/variable/CTEST_SCRIPT_DIRECTORY.rst
@@ -1,5 +1,9 @@
 CTEST_SCRIPT_DIRECTORY
 ----------------------
 
-The directory containing the top-level CTest script.
-The concept is similar to :variable:`CMAKE_SOURCE_DIR`.
+The directory component of the path to the top-level CTest script specified by
+the :option:`ctest -S` option.  It is given as it appears in that path, so it
+may be relative.
+
+The file name part is available in :variable:`CTEST_SCRIPT_NAME`.  The concept
+is similar to :variable:`CMAKE_CURRENT_LIST_DIR`.
diff --git a/Help/variable/CTEST_SCRIPT_NAME.rst b/Help/variable/CTEST_SCRIPT_NAME.rst
new file mode 100644
index 0000000000..074c14c339
--- /dev/null
+++ b/Help/variable/CTEST_SCRIPT_NAME.rst
@@ -0,0 +1,6 @@
+CTEST_SCRIPT_NAME
+-----------------
+
+The file name, without any directory component, of the top-level CTest
+script specified by the :option:`ctest -S` option.  The directory part is
+available in :variable:`CTEST_SCRIPT_DIRECTORY`.