2009 WTA Tour Championships

The 2009 WTA Tour Championships was the end-of-year WTA Tour championship. The top 16 women on the 2009 WTA Tour qualified to participate.
==Singles==
Venus Williams was the defending champion, but lost to her sister Serena Williams 7-6(9-7), 7-5 in the final. This was Serena's second title.
===Seeds===
==Draw==
==Doubles==