Branagan is a surname. Notable people with the surname include:
Carolyn Whitney Branagan (born 1954), American politicianKeith Branagan (born 1966), English-born Republic of Ireland footballerKen Branagan (born 1930), English footballerRitchie Peter Branagan (born 1991), English-born Republic of Ireland footballerJim Branagan (born 1955), English footballer