John Whelan

John Whelan may refer to:

• Seán Ó Faoláin (1900–1991), Irish short story writer, born as John Francis Whelan
• John Whelan (Irish politician) (born 1961), Irish Labour Party politician
• John W. Whelan (1845–1906), American lawyer, farmer, and politician
• John "Rocky" Whelan (died 1855), English bushranger and serial killer in Van Diemen's Land, now Tasmania, Australia