Argyll, Bute and South Lochaber is a constituency of the House of Commons in the UK Parliament. Further to the completion of the 2023 review of Westminster constituencies, it was first contested at the 2024 general election, since when it has been held by Brendan O'Hara of the Scottish National Party, who had been MP for the predecessor seat of Argyll and Bute from 2015 to 2024.