Generation gap is a term for differences between people of a younger generation and their elders.

Generation gap may also refer to:

• Generation gap (pattern), a pattern for modifying or extending generated software code
• Generation Gap (game show), a 2022 American game show that airs on ABC
• Generation Gap, a 2004 American children's special starring Aileen Quinn that aired on PBS
• "Generation Gap", a single by Japanese rock band Gacharic Spin
• The Generation Gap, a 1969 American game show that aired on ABC
• "The Generation Gap" (song), a 1988 single by Hoodoo Gurus