The twelfth and final season of the American television sitcom The Big Bang Theory aired on CBS from September 24, 2018 to May 16, 2019.

[1][2] The series returned to its regular Thursday night time slot on September 27, 2018.

[3] On August 22, 2018, CBS and Warner Bros. Television officially announced that the twelfth season would be the series' last.

[1][4][5] The series concluded with an hour-long finale consisting of two back-to-back episodes on May 16, 2019.

The special was also included on the DVD and Blu-Ray releases of the season.