Frank Callanan (1956–2021) was an Irish barrister and historian. His books include The Parnell Split, 1890–91, a narrative of the last year of Parnell’s life, and T. M. Healy, a biography of Parnell’s principal adversary in the Split. He wrote the entries on Parnell, Healy, John Dillon and Conor Cruise O’Brien for the Dictionary of Irish Biography and edited The Literary and Historical Society 1955–2005, a history of the debating society of University College Dublin, to which James Joyce belonged. He also wrote and produced, with Ruán Magan, the 2022 documentary 100 Years of Ulysses.