Harold Pinter

Harold (poem), a poem by Alfred Tennyson, 1st Baron Tennyson

Harold (book), a book written in 1848 by Edward Bulwer-Lytton, 1st Baron Lytton

Harold Lauder, from Stephen King's "The Stand"

Harold Lloyd

Harold Crick, the main character from the movie Stranger than Fiction

Harold and Maude, a cult classic movie

Harold Ford, Jr. (D) U.S. Congressman, candidate for U.S. Senate

Harold Bishop, from the Australian soap Neighbours

Harold (improvisation), an improvisational form popularized by Del Close and now performed by improvisational comedy groups nationwide

Harold in Italy, the second symphony by Hector Berlioz

Harold the Helicopter, from The Railway Series by W.V. Awdry, and the television series Thomas the Tank Engine and Friends

Harold Allnut, from the Batman comic series

Harold Perrineau, Jr. a US actor

Harold Berman (Hey Arnold!), from the Nickelodeon cartoon Hey Arnold!

Harold La Borde, the great Trinidadian Circumnavigators.

Several kings of Denmark, England and Norway were named Harald or Harold

Harold or the Norman Conquest, an opera by Frederic Cowen

Harold is an Old English name, meaning "army leader", same as the title herald. A diminutive of Harold is Harry.

Harold, a living scarecrow from the Scary Stories' story 'Harold'