Lembit Öpik (/ˈlɛmbɪt ˈoʊpɪk/, Estonian: [ˈlembit ˈøpˑik]; born 2 March 1965) is a former British politician. A former member of the Liberal Democrats, he served as the Member of Parliament (MP) for 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. Öpik stood unsuccessfully for the position of President of the party in 2004 and 2008. He was also unsuccessful in a bid to become the Liberal Democrats' nominee in the 2012 London mayoral election.