Lahey is a surname. It may refer to:
People Alex Lahey (born 1992), Australian musician Ashley Lahey (born 1999), American tennis player Benjamin Lahey, American psychologist Edwin A. Lahey (1902–1969), American journalist Frank Lahey (1880–1953), American physician John C. Lahey (born 1953), American architect John L. Lahey (born 1946), president of Quinnipiac University Lyle Lahey (1931–2013), American political cartoonist, journalist and author May Darlington Lahey (1889–1984), Australian-American lawyer and judge Pat Lahey (1919–2009), American football player Patrick Lahey, co-founder of Triton Submarines Raymond Lahey (1940–2022), Canadian Catholic bishop Romeo Lahey (1887–1968), Australian businessman Tim Lahey (born 1982), American baseball player Vida Lahey (1882–1968), Australian artist
Fictional characters Isaac Lahey, in Teen Wolf - see List of Teen Wolf (2011 TV series) secondary characters Jim Lahey, Barb Lahey and their daughter Treena Lahey, in the television series Trailer Park Boys Nathaniel "Nate" Lahey, a main character in How to Get Away with Murder, an American television series
See also Lahey Health, a health service organization in Massachusetts Lahey Hospital & Medical Center, a teaching hospital of Tufts University School of Medicine Laheys Tramway, a private timber railway in Queensland, Australia