Donal O'Sullivan may refer to: Donal O'Sullivan (artist) (1945–1991), Irish artist Donal Cam O'Sullivan Beare (1561–1613), last independent ruler of the O'Sullivan Beara clan Donal O'Sullivan (Gaelic footballer) (1930–2001), Irish Gaelic football player Donal O'Sullivan (politician) (1893–1973), Irish senator Donal O'Sullivan (priest) (1890–1916), Irish Catholic priest