Harold is an Old English name, meaning "army leader", same as the title herald. It is a common first name.

• Several kings of Denmark, England and Norway were named Harald or Harold.
• Harold was the title of a book written in 1848 by Edward Bulwer-Lytton, 1st Baron Lytton.
• Harold is the name of an improvisational form popularized by Del Close and now performed by improvisational comedy groups nationwide.
• Harold Berman from the Nickelodeon cartoon Hey Arnold!.
  • Harold Berman is also the name of the executive director for the United States Jewish Federation.
• Harold in Italy was the title of the second symphony by Hector Berlioz.
• Harold Ford, Jr. (D) U.S. Congressman, Candidate for U.S. Senate.
• "Harold (poem)" is a poem by Alfred Tennyson, 1st Baron Tennyson