Leisure Suit Larry 6: Shape Up or Slip Out! is the fifth entry in the Leisure Suit Larry series of graphical adventure games published by Sierra On-Line. The game was released for PC (DOS / Windows) and Macintosh.

Larry Laffer is once again single at the outset of the game, as his girlfriend Passionate Patti has been retconned out of the series. After competing — and losing — on the television dating show Stallions, Larry gets an all-expenses-paid trip to La Costa Lotta, a refined health spa. Due to his status as non-paying guest, he is treated rudely by the staff and given the worst room on the premises. As such, none of the available women in the resort want anything to do with Larry, though it is possible to change their minds with the right gifts.