Villarreal Club de Futbol, S.A.D. (Valencian: Vila-real Club de Futbol, S.A.D.), usually abbreviated to Villarreal CF or just Villarreal, is a Spanish professional football club based in Villarreal that plays in La Liga, the top flight of Spanish football.
Founded in 1923, the club spent much of its history in the lower divisions of Spanish football, and only made their La Liga debut in 1998. In the 21st century, Villarreal gained some league stability, and the club made its first appearance in the UEFA Champions League in 2005. The club also appeared in the UEFA Europa League during this time, but sustained relegation in 2012, quickly rebounding and becoming a stable top division club.
The club is nicknamed El Submari Groguet or El Submarino Amarillo (Yellow Submarine) due to its yellow home kit, and due to being a low-profile team compared to Real Madrid, Barcelona, Atletico Madrid, and regional rivals Valencia. They play their home games at the Estadio de la Ceramica, and have been touted as an example of a small, but successful club.