Hewit is a surname. Notable people with the name include:
Alex Hewit (born 1985), American lacrosse player Augustine Francis Hewit (1820–1897), American priest Gordon Hewit (1958–2009), British swimmer Mabel Hewit (1903–1984), American woodblock print artist Nathaniel Hewit (1788–1867), American clergyman
See also Hewitt (name), given name and surname