Thomas Buchanan MLA (born 30 July 1963) is a Unionist politician from Northern Ireland representing the Democratic Unionist Party (DUP). Buchanan has been a Member of the Northern Ireland Assembly (MLA) for West Tyrone since 2003. He is also one of the DUP's members of the Northern Ireland Policing Board. In July 2010, he complained about a display of bunting inside an Omagh bank that celebrated a success by the Tyrone GAA team. The bank had been sponsoring the Ulster Championship. Buchanan accused the Gaelic Athletic Association (GAA) of being a political and Irish republican organisation.