Felicity is an English female given name. It means "happiness". The name is derived from the Latin name Felicitas. Felicitas is the name for an Ancient Roman goddess. This female name was at 236 in popularity for girls around England and Wales. The name was 390th in popularity on girls in the United States for 1999. Felicity is a female form of the male name Felix. The name Felicity is the name of a character played by Keri Russell.