East Lothian (Scottish Parliament constituency)

East Lothian (/ˈloʊðiən/; Scots: Aest Lowden; Scottish Gaelic: Lodainn an Ear) is a constituency of the Scottish Parliament (Holyrood) covering most of the council area of East Lothian. It elects one Member of the Scottish Parliament (MSP) by the plurality (first past the post) method of election. It is also one of nine constituencies in the South Scotland electoral region, which elects seven additional members, in addition to the nine constituency MSPs, to produce a form of proportional representation for the region as a whole.

The seat has been held by Paul McLennan from the Scottish National Party since the 2021 Scottish Parliament election.

As a result of the second periodic review of Scottish Parliament boundaries in 2025, the constituency will be abolished from the 2026 Scottish Parliament election. Most of the area will form the new constituency of East Lothian Coast and Lammermuirs, whilst the Tranent area will be added to the new constituency of Edinburgh Eastern, Musselburgh and Tranent.