Àlvar Alonso Rosell (born 13 September 1992 in Figueres, Girona) is a Spanish chess Grandmaster.

[1] He was champion of Spain in 2011, surpassing the player Miguel Illescas.

In 2014 he defeated Narciso to become the 2014 Catalonia chess champion.

[2] On 23 December 2018 he won the 5th Sunway Sitges Chess Festival by scoring 8/10, half a point more than strong grandmasters such as Vassily Ivanchuk and Dmitry Andreikin.

This biographical article relating to a Spanish chess figure is a stub.