Maine is a given name. Notable people with the name include:
Maine mac Cerbaill (died 537), Irish king
Maine mac Néill (died 712), Irish king
Maine Mór, Irish founder of the kingdom of Uí Maine
Maine Munchaín, Irish dynast
Maine de Biran (1766–1824), French philosopher
Maine Mendoza (born 1995), Filipina comedian, actress and model
Fictional characters
Maine (メイン), a fictional character and veteran edgerunner (veteran mercenary) in the original net animated (ONA) miniseries Cyberpunk: Edgerunners, based on the action role-playing game Cyberpunk 2077