Dame Tristina Adele Harrison DBE (née Clark; born 26 February 1973[1]), known as Tristia Harrison, is a British businesswoman, and was the CEO of TalkTalk Group from May 2017[2][3] to August 2024.
[4][7] She was succeeded as CEO by James Smith at the end of August 2024.
[9] Harrison was a trustee of Comic Relief for almost a decade and the national charity Ambitious about Autism.
In 2020, she was named chair of trustees for the national homeless charity, Crisis,[10] She is married to Andrew Harrison, former CEO of Carphone Warehouse.
[12] Harrison was appointed Dame Commander of the Order of the British Empire (DBE) in the 2024 New Year Honours for services to telecommunications.