James O'Sullivan

James O'Sullivan may refer to:


 * James O'Sullivan (bishop) (1834–1915), Irish Anglican bishop
 * James O'Sullivan (defence storekeeper) (1855–1925), New Zealand Army Officer
 * James O'Sullivan (politician) (1867–1921), member of the Queensland Legislative Assembly
 * Jimmie O'Sullivan (1883–1960), New Zealand rugby union player
 * James O'Sullivan (academic) (born 1986), Irish writer, publisher, and academic