Rogan is an Irish surname, deriving from the Gaelic Ó Ruadhagáin 'descendant of Ruadhagán' (a diminutive of ruadh, meaning 'red'). Notable people. Alex Rogan, a fictional character in the 1987 movie The Last Starfighter. Adrian Rogan, one of six people killed in the 1994 Loughinisland massacre. Anton Rogan, Irish soccer player. Barney Rogan, American film editor. Bullet Rogan (1893-1967), American baseball player. Dennis Rogan, Baron Rogan, Irish politician. Emma Rogan, Sinn Féin politician in Northern Ireland.
https://en.wikipedia.org/wiki/Rogan