diff --git a/Modules/FindTclsh.cmake b/Modules/FindTclsh.cmake
index 878735ac01..81c666a207 100644
--- a/Modules/FindTclsh.cmake
+++ b/Modules/FindTclsh.cmake
@@ -5,16 +5,41 @@
 FindTclsh
 ---------
 
-Find tclsh
+Finds the Tcl shell command-line executable (``tclsh``), which includes the Tcl
+(Tool Command Language) interpreter.
 
-This module finds if TCL is installed and determines where the include
-files and libraries are.  It also determines what the name of the
-library is.  This code sets the following variables:
+Result Variables
+^^^^^^^^^^^^^^^^
 
-::
+This module defines the following variables:
 
-  TCLSH_FOUND = TRUE if tclsh has been found
-  TCL_TCLSH = the path to the tclsh executable
+``Tclsh_FOUND``
+  Boolean indicating whether the ``tclsh`` executable (and the requested
+  version, if specified) is found.  For backward compatibility, the
+  ``TCLSH_FOUND`` variable is also set to the same value.
+
+Cache Variables
+^^^^^^^^^^^^^^^
+
+The following cache variables may also be set:
+
+``TCL_TCLSH``
+  The path to the ``tclsh`` executable.
+
+Examples
+^^^^^^^^
+
+Finding the ``tclsh`` command-line executable:
+
+.. code-block:: cmake
+
+  find_package(Tclsh)
+
+See Also
+^^^^^^^^
+
+* The :module:`FindTCL` module to find the Tcl installation.
+* The :module:`FindTclStub` module to find the Tcl Stubs Library.
 #]=======================================================================]
 
 get_filename_component(TK_WISH_PATH "${TK_WISH}" PATH)