Tanguay is a surname. Notable people with the surname include:
Alex Tanguay (born 1979), Canadian ice hockey player Bill Tanguay (1909–1971), American football player Cyprien Tanguay (1819–1902), French-Canadian priest and historian Eva Tanguay (1879–1947), Canadian-born singer and entertainer Georges Tanguay (1856–1913), Canadian politician John Tanguay (born 1998), American rower Robyn Leigh Tanguay (born 1966), American researcher and educator
See also
Yves Tanguy (1900–1955), French painter