Ross Thomson (born 21 September 1987) is a former Scottish Conservative Party politician who was the Member of Parliament (MP) for Aberdeen South from 2017 to 2019.

At the United Kingdom general election in 2010, Thomson was selected as the Conservative Party candidate for the Scottish constituency of Gordon, and finished in fourth place, receiving 9,111 votes.

Although the Scottish National Party's Maureen Watt retained the latter seat,[10] Thomson was elected through the Additional Member System as one of the seven representatives of the North East Scotland region.

[14][15] On 5 October 2016, Thomson repaid expenses relating to a night's stay in an Edinburgh hotel with a male friend, Braden Davy, whom he subsequently hired over the objections of the Tory chief whip.

[16] On 8 June 2017, Thomson became the Member of Parliament for Aberdeen South, defeating incumbent Callum McCaig, with 18,746 votes, a 19.3% swing and a majority of 4,752.

[22] After stepping down as an MP, Thomson has worked as a public affairs and campaign manager for the Earl Haig Fund Scotland (also known as Poppyscotland).

[32] The same day Thomson announced that he would not stand for re-election as the Member of Parliament for Aberdeen South, denying the allegation and stating that it had made his life 'a living hell'.

[34] In October 2020, the Parliamentary Commissioner for Standards "concluded that Thomson's behaviour was not sexual in nature and cleared him of any breach of parliament's misconduct policy".