Leigh-Allyn Baker (born March 13, 1972) is an American actress and voice artist. She had recurring roles on Charmed and as Ellen on Will & Grace, and a starring role as the matriarch Amy Duncan on the Disney Channel sitcom Good Luck Charlie. She also provided the voice of Abby on the Nickelodeon computer animated series Back at the Barnyard.
Baker has done voice work in video games for the Star Trek and X-Men and guest starred in television shows such as That '70s Show, Early Edition, Yes, Dear and among other series. She also starred in the short-lived 1996 sitcom The Last Frontier and voiced Lu Zhi in the 2010 game Age of Conan: Rise of the Godslayer.
Baker is also known to television audiences for her recurring roles as Hannah Webster in the first season of Charmed and as Ellen, the long-time friend of Grace Adler (Debra Messing) on Will & Grace, a role she played since the show began in 1998 through to its last season in 2006 (and again in 2018, in the show's revival). She is also known for providing the voice of Abby in the Nickelodeon animated series Back at the Barnyard.