Lembit Öpik
- Born
- 2 March 1965 (61 years)
- Place of birth
- Bangor, County Down, Northern Ireland, UK
- Gender
- Male
Lembit Öpik is a British former politician. A member of the Liberal Democrats, he served as a member of parliament representing the constituency of Montgomeryshire in Wales from 1997 until he lost his seat at the 2010 general election. He was the leader of the Welsh Liberal Democrats from 2001 to 2007.