Edinburgh Eastern, Musselburgh and Tranent

Edinburgh Eastern, Musselburgh and Tranent is a burgh constituency of the Scottish Parliament covering parts of Edinburgh and East Lothian. From the 2026 Scottish Parliament election it will elect one Member of the Scottish Parliament (MSP) by the first past the post method of election. Under the additional-member electoral system used for elections to the Scottish Parliament, it is also one of nine constituencies in the Edinburgh and Lothians East 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 was created by the second periodic review of Scottish Parliament boundaries in 2025. It covers much of the former Edinburgh Eastern seat, but also includes areas that were formerly in the East Lothian seat, which had grown too large compared to other seats and therefore required to be redrawn. The remainder of the former East Lothian seat now forms the new East Lothian Coast and Lammermuirs seat.