Hanratty is a surname, and may refer to:

• Alice Hanratty (born 1939), Irish artist specialising in printmaking
• James Hanratty (1936–1962), the seventh-to-last person in Britain to be hanged for murder
• Pat Hanratty, Canadian social activist and former president of the New Brunswick New Democratic Party
• Sammi Hanratty (born 1995), American actress
• Terry Hanratty (born 1948), American football player

Related names of Irish, and Dutch Jewish surnames.

• Enright
• Kenraghty