This is a list of notable events in the history of LGBT rights that took place in the year 1988.
- In Hungary, Lambda becomes the first LGBT organisation to be registered, also becoming the first such official recognition of an LGBT organization in Central and Eastern Europe.
- 8 — Voters in Oregon approve Measure 8, repealing Governor Neil Goldschmidt's 1987 executive order banning sexual orientation discrimination in state employment. The repeal does not go into effect as it is immediately challenged in court, and is ruled unconstitutional in 1992.
- 21 — The Chicago City Council votes 28–17 to ban discrimination based on sexual orientation.