Maidhc Dainín Ó Sé (2 February 1942 – 29 August 2013) was an Irish-language writer and musician from the County Kerry Gaeltacht. He was the father of Dáithí Ó Sé. He was one of the best known Irish writers of his generation, noted for his autobiography A Thig Ná Tit Orm. His writings were used as part of the Irish-language element of the Leaving Certificate in Irish state education, as a replacement for Peig from 1995.