Thomas Compton Arthur MSP (born 1985) is a Scottish National Party (SNP) politician.

He is the Member of the Scottish Parliament (MSP) for the constituency of Renfrewshire South, having been first elected in 2016[1] and re-elected in 2021.

Before entering politics, he worked as a company director, freelance piano teacher and keyboardist.

[2] In May 2021 he was appointed Minister for Public Finance, Planning and Community Wealth in the Scottish Government.

[6] In March 2023, Humza Yousaf re-appointed him to his ministerial role as Minister for Community Wealth and Public Finance.