Diego Arana Antoñanzas (born 12 September 1988) is a Spanish field hockey player who plays as a forward for Jolaseta and the Spanish national team.

In the 2015–16 season he helped them claim their first-ever play-off place in the Men's Belgian Hockey League.

[5] He returned to Jolaseta after a half season to improve his chances for selection in the Spain squad.

[6] Arana made his debut for the senior national team in December 2016 in a test match against Ireland.

[7][8] At the 2019 EuroHockey Championship, he won his first medal with the national team as they finished second.