Ross Thomson is an Aberdonian born and raised. He was educated at Balmedie Primary School, Bridge of Don Academy and graduated in 2009 from the University of Aberdeen a First Class MA (Hons) in Politics and International Relations.

Ross worked in retail and finance until in 2012 when he was elected to represent Hazlehead/Ashley/Queen’s Cross on Aberdeen City Council. During Ross' time as a councillor, he led the way on delivering the Third Don Crossing, thereby taking forward a plan for over 2,000 new affordable homes. He also helped to strengthen Aberdeen’s links with Japan and lobbied to improve broadband across Aberdeen.

In June 2013 Ross was chosen as the Scottish Conservative and Unionist candidate in the Aberdeen Donside by-election. He used this opportunity to campaign for improved infrastructure and a fairer share of funding for the City of Aberdeen. He consequently went on to stand in the 2015 General Election in Aberdeen South and in the 2016 Scottish Parliamentary elections in Aberdeen South and North Kincardine where he achieved a 19.4% swing and was elected to the Scottish Parliament via the regional list.

During Ross' time at the Scottish Parliament, he was selected to serve on the Education and Skills Committee and as the Scottish Conservative and Unionist Party’s spokesman on Higher Education, Further Education, Science and Technology. Ross became a spokesman for the Vote Leave campaign in the 2016 EU Referendum as one of the few pro-Brexit Members of the Scottish Parliament.

On 8th June 2017, Ross became the Member of Parliament for Aberdeen South, beating the incumbent Callum McCaig, with 18,746 votes (42.1%) which was a 19.3% swing and a majority of 4,752. Since his election as MP for Aberdeen South Ross has been elected to the Scottish Affairs Select Committee, is a member of the Knife Crime APPG and the Oil and Gas APPG.