The twentieth season of the American animated sitcom The Simpsons aired on Fox from September 28, 2008 to May 17, 2009.

Guest stars for the season included Denis Leary, Julia Louis-Dreyfus, Mark Cuban, Jeff Bezos, Jodie Foster, and Anne Hathaway.

The episodes that were given this rating were "Sex, Pies and Idiot Scrapes", "Treehouse of Horror XIX", "Gone Maggie Gone", "No Loan Again, Naturally", "Dangerous Curves", "Wedding for Disaster", and "Four Great Women and a Manicure".

[57] As part of the celebration, the Irish-themed episode "In the Name of the Grandfather" premiered on Sky1 in the United Kingdom and Ireland on March 17, 2009.

He gave it a positive review saying that it was "Good" and that "With at least two more years of The Simpsons guaranteed, this unexpected but very welcome resurgence has come at a perfect time.

Dan Castellaneta won the Outstanding Voice-Over Performance Emmy for voicing Homer in the episode "Father Knows Worst"; Hank Azaria and Harry Shearer were also nominated for the episodes "Eeny Teeny Maya Moe" and "The Burns and the Bees", respectively.

The nominees were: Stephanie Gillis for "The Burns and the Bees", John Frink for "Eeny Teeny Maya, Moe", Billy Kimball & Ian Maxtone-Graham for Gone Maggie Gone", Don Payne for "Take My Life, Please", and Joel H. Cohen for "Wedding for Disaster".

[65] The DVD and Blu-ray boxset for season twenty was released by 20th Century Fox Home Entertainment in the United States and Canada on January 12, 2010, eight months after it had completed broadcast on television.

As well as every episode from the season, the Blu-ray and DVD releases feature hand-drawn menus by Matt Groening.