Columba Barry McElduff (Irish: Colmcille Barra Mac Giolla Dhuibh; born 16 August 1966) is an Irish Sinn Féin politician. He was the Member of Parliament (MP) for the West Tyrone UK parliament constituency. He was also a Member of the Legislative Assembly in the Northern Ireland Assembly from its creation in 1998 until his election as MP in 2017. He resigned his seat on 16 January 2018 after publishing a video which political opponents claimed mocked the Kingsmill massacre.