"Chelsea" is a highly versatile term, most commonly referring to Chelsea F.C., a well-known Premier League association football club in London, England, and the Chelsea area of London itself, bounded by the River Thames. The name is also popular as a given name and identifies numerous places across Australia, Canada, the United Kingdom, and particularly the United States, including a prominent neighborhood in Manhattan, New York City.

In arts and entertainment, "Chelsea" denotes an influential English punk rock band formed in 1976, an early American folk-rock group, and several songs, notably Elvis Costello's 1978 hit "(I Don't Want to Go to) Chelsea." Furthermore, it is associated with significant establishments like the Chelsea Piers sports and entertainment complex in New York City and the historic Royal Hospital Chelsea for veterans in London. This demonstrates the name's broad and diverse presence across culture, geography, and various institutions.