David Casinos Sierra[a][1] (born 15 February 1972 in Valencia) is a Paralympian athlete from Spain competing mainly in category F11 shot put events.

[10][11] In November 2013, he participated in Universal Children's Day celebration in Madrid by presenting a book to the Supreme Council of Sports.

[4] In 2002, he competed in the Valencia Athletics Open, which was organized by the Federació d'Esports Adaptats de la Comunitat Valenciana (FESA).

[14] He competed in the 2012 Spanish national championships held in the Basque country, where he set a Paralympic B qualifying standard in the shot put with a distance of 13.10 meters.

[18] Prior to the start of the London Games, he trained with several other visually impaired Spanish track and field athletes in Logroño.