Thomson was born in Aberdeen and educated locally at Bridge of Don Academy. He studied Politics and International Relations at the University of Aberdeen, graduating with a first class MA degree in 2009. Prior to entering politics, Thomson worked as a store trainer for department store Debenhams.
Political career
He stood for the Scottish Parliament at the 2007 elections for the Coatbridge and Chryston constituency, coming third behind LabourMSPElaine Smith and the Scottish National Party candidate. He was also third in Aberdeen Donside in 2011. 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 4,111 votes. He was the youngest Conservative Party candidate for the House of Commons. He was elected to the Aberdeen City Council at the 2012 Aberdeen City Council election. Thomson contested the Aberdeen Donside by-election in 2013, finishing in fourth place. He stood as the Conservatives' candidate in Aberdeen South during the 2015 general election, but was unsuccessful, and subsequently stood in the Aberdeen South and North Kincardine constituency at the 2016 Scottish Parliament election. Although the Scottish National Party's Maureen Watt retained the latter seat, Thomson was elected through the Additional Member System as one of the seven representatives of the North East Scotland region. During his time as a Member of the Scottish Parliament, Thomson was the Scottish Conservative spokesperson for Further Education, Higher Education and Science, and sat on the Education and Skills Committee. Thomson also became a spokesman for Vote Leave in Scotland during the 2016 United Kingdom European Union membership referendum as one of the few members of the Scottish Parliament supporting a leave vote. On 5 October 2016, Thomson repaid expenses relating to a night's stay in an Edinburgh hotel with a male friend whom he subsequently hired. 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. He stood down from his seat as an MSP after being elected. Since entering the UK Parliament, Thomson has become known as a "hardline" supporter of Brexit. In April 2018, Thomson was criticised for posts made on his private social media account whilst visiting Baghdad. Thomson was accused of trivialising the dictatorship of Saddam Hussein when he posed for photos at Hussein's military parade ground. A Scottish Conservative spokesman said: "Ross has already made clear he did not intend to cause any offence and apologises to anyone who has been upset." He supported Boris Johnson in the 2019 Conservative leadership election and became his campaign manager in Scotland.
Personal life
Thomson entered into a civil partnership with a male partner in November 2013, which lasted until 2018. On 29 November 2018, Callum Purdie was convicted at Aberdeen Sheriff Court of causing a disturbance at the constituency office of Thomson. The following month, Purdie, who was not one of Thomson's constituents, was ordered to stay away from Thomson's office and his staff for two years.
Sexual misconduct allegations
On 6 February 2019, various newspapers reported claims that Thomson had been escorted by police from the Strangers' Barof the House of Commons the previous evening. Initial reports indicated that police had attended following reports of "sexual touching" of patrons by the MP. Eyewitnesses claimed that Thomson had repeatedly groped several young men also present in the bar, grabbing their bottoms and genitals. No prosecutions followed and a Conservative Party investigation is yet to conclude, but the Parliamentary Commissioner on Standards dismissed the complaint. Thomson denied any wrongdoing, citing the allegations as politically motivated. On 3 November 2019 MP Paul Sweeney accused Thomson of sexual assault in the Strangers' Bar in October 2018. 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'. It later emerged that the chairman of Thomson's local Conservative Association had refused to sign the nomination papers to allow him to stand as a Conservative candidate in the December 2019 general election.