Howitt is a surname, and may refer to:
- Alfred William Howitt (1830-1908), Australian anthropologist and naturalist
- Dann Howitt (born 1964), retired American Major League baseball player
- Dave Howitt (born 1952), former English professional footballer
- Godfrey Howitt (1800-1863), English born Australian botanist and doctor
- Hugh Howitt, English pub landlord
- Mary Howitt (1799-1888), English poet and author
- Peter Howitt (born 1957), English actor and film director
- Peter Howitt (born 1928), English set decorator
- Peter W. Howitt (born 1946), Canadian economist
- Richard Howitt (born 1961), English MEP
- Richard Howitt (poet) (1799-1869), English born Australian poet
- Richard Howitt (cricketer) (born 1977), English cricketer
- Richard Howitt (cricketer born 1864) (1864-1951), English cricketer
- Samuel Howitt (1765-1822), English artist
- Thomas Cecil Howitt (1889-1968), 20th century English architect
- William Howitt (1792-1879), English author