The Derby is the name of a race for three-year-old horses that takes place each year. In Britain, it refers to a race that takes place in Epsom. In the United States, it refers particularly to the Kentucky Derby.

A derby is a sporting event involving teams from the same area or city.

A derby is a sports competition or race where there are no restrictions or limits on who can enter.

A derby is a round, hard hat with a narrow brim which is worn by men. Derbies are no longer very common.