Daniel Lee Harrigan (born October 29, 1955) is an American former competitive swimmer for North Carolina State University and a 1976 Montreal Olympic bronze medalist in the 200-meter backstroke.

He began competitive swimming by the age of ten, and swam for both the Michiana Marlins and South Bend Adams High School, where he attended from 1970–74 and was coached by Steve Smith.

[5][3] Harrigan was an outstanding student who earned a 3.5 grade point average and majored in architecture at North Carolina State University (NCSU),[1] where he swam for the NC State Wolfpack swimming and diving team in National Collegiate Athletic Association (NCAA) competition.

[1][12][13] Twenty years after his Olympic medal, Harrigan was a busy employee of the Spillman Farmer architectural firm in Bethlehem, Pennsylvania, where he had worked since 1983, after studying at Penn State.

His architectural achievements included designing Bethlehem's Calypso School and the outside of Lehigh University's Goodman Stadium, used for their football games.

During his years at North Carolina State University, while swimming at the 1978 Atlantic Coast Championship, the coaches voted him the meet's outstanding performer.