"Lisa's First Word" is the tenth episode of the fourth season of the American animated television series The Simpsons. It was first broadcast on the Fox network in the United States on December 3, 1992. In the episode, as the Simpson family gathers around Maggie and tries to encourage her to say her first word, Marge reminisces and tells the story of Lisa's first word. Maggie's first word is voiced by Elizabeth Taylor.

The fourth season of the American animated television series The Simpsons originally aired on the Fox network between September 24, 1992, and May 13, 1993, beginning with "Kamp Krusty". The showrunners for the fourth production season were Al Jean and Mike Reiss, with the season being produced by Gracie Films and 20th Century Fox Television. The aired season contained two episodes which were hold-over episodes from season three, which Jean and Reiss also ran. Following the end of the production of the season, Jean, Reiss and most of the original writing staff left the show. The season was nominated for two Primetime Emmy Awards and Dan Castellaneta would win one for his performance as Homer in "Mr. Plow". The fourth season was released on DVD in Region 1 on June 15, 2004, Region 2 on August 2, 2004, and in Region 4 on August 25, 2004.