Ruin Jonny's Bar Mitzvah is a live album by Me First and the Gimme Gimmes, released on October 19, 2004 on Fat Wreck Chords. It was recorded live at an actual bar mitzvah party, and its runtime lasts their entire performance, including a break in which little can be heard other than the sounds of party guests wandering around and chatting amongst themselves. Jonny Wixen, the Bar Mitzvah boy, plays drums on one of the hidden tracks that are on the final track. The album is almost entirely made up of songs that have not appeared on previous albums. The only exceptions are two hidden tracks: "Seasons in the Sun" from Have a Ball (1997) and "Sloop John B" from Blow in the Wind (2001).