Martha Speaks is an animated educational children's television series based on the 1992 children's book of the same name by Susan Meddaugh and debuted on September 1, 2008 on PBS, on the PBS Kids programming block. The series was produced by WGBH Boston, with animation by DHX Media/Vancouver for the first four seasons and Oasis Animation for the final two seasons of the series.

The series focuses mainly on synonyms, phonics, and vocabulary, with each episode featuring an underlying theme illustrated with a wide variety of keywords. The show also occasionally focuses on introducing children aged four to seven to different concepts of science, history, astronomy and other learning concepts (from the Spanish language to passing mentions of it).

On July 6, 2009, the series was renewed for a second season, which premiered on September 14, 2009. On August 2, 2010, the series was renewed for another two seasons. The third season premiered on October 11, 2010 and the fourth season premiered on February 20, 2012. On April 29, 2013, the series was renewed for an additional two seasons. The fifth season premiered on June 24, 2013 and the sixth season premiered on March 31, 2014.

On October 10, 2014, it was announced that the sixth season would be its last. The series finale aired on November 18, 2014.