Sister is the debut studio album by the Spanish rock band Dover. It was released on 15 August 1995 under the independent record company Everlasting-Caroline.

Dover was a Spanish rock band founded in Madrid in 1992. The group was composed of the sisters and group leaders Cristina Llanos (vocals) and Amparo Llanos, drummer Jesús Antúnez and bassist Samuel Titos. They recorded eight albums, selling around two million copies. They are known for their second album Devil Came to Me, which led them to international fame. In 2006, their sixth album, Follow the City Lights caused controversy as the style of the group changed from alternative rock to electronic pop. The band won, among other things, the revelation group awards at the 1997 Premios Ondas and the award for best Spanish artist at the 2000 MTV Europe Music Awards. The band was disbanded in 2016 by Amparo Llanos, who has since begun another project without her sister.