The 2016 Scottish parliament election was held on Thursday, 5 May 2016 to elect 129 members to the Scottish Parliament. It was the fifth election held since the devolved parliament was established in 1999. It was the first parliamentary election in Scotland in which 16 and 17 year olds were eligible to vote, under the provisions of the Scottish Elections (Reduction of Voting Age) Act (the voting age had previously been 16 in the 2014 Independence Referendum). It was also the first time the three largest parties were led by women.
Parliament went into dissolution on 24 March 2016, allowing the official period of campaigning to get underway. Five parties had MSPs in the previous parliament: Scottish National Party (SNP) led by First Minister Nicola Sturgeon, Scottish Labour led by Kezia Dugdale, Scottish Conservatives led by Ruth Davidson, Scottish Liberal Democrats led by Willie Rennie, Scottish Greens, led by their co-conveners Patrick Harvie and Maggie Chapman. Of those five parties, four changed their leader since the 2011 election.