Courtney

From an aristocratic English surname that was derived either from the French place name Courtenay (originally a derivative of the personal name Curtenus, itself derived from Latin curtus "short") or else from a Norman nickname meaning "short nose".

Originally more common as a name for boys in America, it became more popular for girls in the 1960s. It began rapidly increasing after 1973, possibly due to a character (played by Natalie Wood) in the television movie The Affair. It reached an apex in the United States ranked 17th in 1990, though it has quickly fallen away since then.