Douglas Murray McGregor (September 6, 1906 – October 1, 1964) was an American management professor at the MIT Sloan School of Management and president of Antioch College from 1948 to 1954.

Ewan Gordon McGregor (born 31 March 1971) is a Scottish actor.

Robert McGregor RSA was a Scottish landscape painter, genre painter, portrait painter and marine painter.

(June 22, 1869 – 1941) an American painter and instructor who embraced the Boston School paradigm and was a co-founder of The Guild of Boston Artists.

Conor Anthony McGregor (born 14 July 1988) is an Irish professional mixed martial artist, professional boxer, businessman and actor.

Ewan McGregor made his acting debut in 1993 in the British television series Lipstick on Your Collar.

Floyd Mayweather Jr. vs. Conor McGregor, billed and promoted as The Money Fight and The Biggest Fight in Combat Sports History, was a professional crossover boxing match between undefeated eleven-time five-division boxing world champion Floyd Mayweather Jr. and two-division mixed martial arts world champion and, at the time, UFC Lightweight Champion Conor McGregor.

Callum William McGregor (born 14 June 1993) is a Scottish professional footballer who plays as a midfielder for club Celtic, whom he captains.

Catherine McGregor is a prominent Australian transgender writer, commentator and former Australian Defence Force officer.

Allan James McGregor (born 31 January 1982) is a Scottish former professional footballer who played as a goalkeeper.