Meggitt is an originally English surname closely related to Meggett. In England, the surname can be traced back to the name Meggot, a female personal name from Old English, which itself is a diminutive of Megg, which is a shortening of Margaret. It may also be related to Scottish locational names from Megget.
Notable people with this surname include:
Frank Meggitt (1901–1945), Welsh cricketer
Justin Meggitt, professor of religious studies at Cambridge University
Margaret Sara Meggitt (1866–1920), British activist
Mervyn Meggitt (1924–2004), Australian anthropologist
William Meggitt (1894–1927), British military aviator