Joseph Finnegan
Joseph Finnegan may refer to:
- Joseph Finegan, sometimes Finnegan, American businessman and general
- Joseph Finnegan (senator), member of the Massachusetts State Senate from 1930 to 1934, namesake of Senator Joseph Finnegan Park
- Joseph F. Finnegan, American labor mediator
- Joseph Finnegan (cryptographer), American linguist and cryptographer
- Joseph Finnegan (judge), judge of the Supreme Court of Ireland