Francisco Clavet, Spanish tennis player
Francisco Javier Clavet González de Castejón (Spanish pronunciation: [fɾanˈθisko xaˈβjeɾ klaˈβet ɣonˈθaleθ ðe kasteˈxon]; born 24 October 1968), known as Pato Clavet (Spanish pronunciation: [ˈpato]), is a former professional tennis player from Spain. He won eight singles titles, reached the semifinals of the 1992 Indian Wells Masters and the 1999 Miami Masters, and achieved a career-high ranking of world No. 18 in July 1992. He reached No. 16 at the Champions Race (now called ATP Race to London), after winning in Scottsdale in 2001.

During his career, he defeated some current, future and past number-one-ranked players, including John McEnroe, Mats Wilander, Andre Agassi, Lleyton Hewitt, and Roger Federer. In his only meeting with Federer, at the 2000 Cincinnati Masters, Clavet won and told Swiss newspaper Blick his defeat of Federer was one of his most important win as he considers Federer "the greatest tennis player of all time".Clavet was coached by his brother, José Clavet, until 1999. From 2001 until his retirement in 2003, he was coached by Uruguayan Bebe Pérez.