Stagg is a surname. Notable people with the surname include:
Amos Alonzo Stagg (1862–1965), American collegiate coach in multiple sports, primarily footballAmos Alonzo Stagg, Jr. (1899–1996), American football player and football and basketball coachBarry Stagg (born 1944), Canadian musician, composer and play writerColin Stagg, the man wrongly imprisoned in the Rachel Nickell murder case (1992)David Stagg (born 1983), Australian rugby league playerEmmet Stagg (born 1944), Irish Labour Party politicianFrank Noel Stagg (1884–1956), Royal Navy officer, expert on Norway, author and historianFrank Stagg (theologian) (1911–2001), American Southern Baptist seminary professor, author, and pastorFrank Stagg (1942–1976), member of the Provisional IRA, convicted in 1973 in Britain of conspiracy to commit arsonSir James Stagg (1900–1975), Royal Air Force meteorologist who persuaded General Dwight D. Eisenhower to change the date of the Allied invasion of EuropeJesse Stagg (born 1970), American creative director and producerJohn Stagg (poet) (1770–1823), English poetLindsey Stagg (born 1970), English former child actorPaul Stagg (1909–1992), American football player, coach, and college athletics administratorPeter Stagg (born 1941), Scottish rugby union playerSir Richard Stagg (born 1955), British ambassadorTom Stagg (born 1923), U.S. district judge in the Western District of LouisianaC. Tracey Stagg (1878–1939), New York state senator