Nollaig Ó Gadhra (Irish pronunciation: ['n???l???? o? 'g?i???]; 16 December 1943 – 13 August 2008) was an Irish-language activist, journalist and historian in Ireland.
He was president of Conradh na Gaeilge from 2004 to 2005.
He was also a founding member of Teilifís na Gaeilge.