Thomas, Tommy or Tom Duggan may refer to:
Thomas Duggan (1882–1930) — a Canadian sports promoter Thomas Hinds Duggan (1815–1865) — Texas state senator Tommy Duggan (1897–1961) — American soccer player Tommy Duggan (1919–1998) — Irish film and television actor Tom Duggan (1915–1969) — American radio commentator
See also Tom Dugan (disambiguation)