Thank God for Mental Illness is the fifth studio album by American psychedelic rock band The Brian Jonestown Massacre. After releasing Take It from the Man! and Their Satanic Majesties' Second Request in mid-1996, both of which display influences from 1960s psychedelic music, departing from the band's earlier shoegaze sound, the band recorded Thank God for Mental Illness through "tangible custom lo-fi stereo" in their San Francisco home studio on July 11, 1996, with the budget of $17.36.

The Brian Jonestown Massacre is an American rock band led and started by Anton Newcombe. It was formed in San Francisco in 1990.