Monica is a female given name. In the United States, the name was very popular in the late 1970s, when it peaked near #39. The popularity has been declining since then. In 2010 the name ranked #363. The 1858 novel "Doctor Thorne" had a character was named Monica Thorne. People with the name include Monica Lewinsky, Monica Seles and Monica Potter. Fictional people by the name include Monica Geller from the television sitcom "Friends".