Alastair Ross (born 4 March 1981) is a Unionist politician in Northern Ireland.
Ross studied at the Friends School in Lisburn and at the University of Dundee before returning to study Irish Politics at Queen's University Belfast. While there, he became a Democratic Unionist Party (DUP) activist. In 2005, he began working for Sammy Wilson as a parliamentary researcher following a spell in DUP headquarters as a press officer in the lead up and during the 2005 general election, and at the Northern Ireland Assembly election, 2007, he was the campaign manager for the party's three candidates in East Antrim, all of whom were elected.
Ross sits on the Northern Ireland Policing Board, as well as Committees for Standards and Privileges, Environment, and Education at Stormont. Ross has also served on Committees for Justice, Regional Development, Employment and Learning, and the ad hoc Committee on Sexual Offences.
He is a member of the Management Committee of Lisnagarvey Hockey Club. His predecessor George Dawson, was one of the three DUP MLAs in East Antrim, and died shortly after the election. Ross was nominated by a closed list submitted by Dawson as his replacement.
Ross has responded to criticisms by Sinn Féin's Tourism Spokesperson Phil Flanagan that the 'Our Time, Our Place' tourism initiative was not working.