|Full name||Alexánder Castro Trejos|
|Date of birth||February 14, 1979|
|Place of birth||Golfito, Costa Rica|
|Height||1.74 m (5 ft 9 in)|
|Playing position||Right back|
|* Senior club appearances and goals counted for the domestic league only and correct as of December 2011.
† Appearances (Goals).
Castro made his league debut for Alajuelense on 7 February 1999 against Municipal Goicoechea, also immediately scoring a goal in the match, and played for Herediano, whom he joined for a second spell in August 2010, Cartaginés and Ramonense in the Primera División de Costa Rica.
In December 2011, Castro began legal proceedings against Herediano, claiming the club owed him money after they did not honor his contract until 2013.
Castro made 23 appearances for the Costa Rica national football team, including two qualifying matches for the 2006 FIFA World Cup. He made his debut in a UNCAF Nations Cup 2001 match against Belize on June 23, 2001. He made two appearances for Costa Rica at the Copa América 2004 and five appearances at the 2003 CONCACAF Gold Cup.
- Alexánder vive su momento - Nación (Spanish)
- Alexander Castro se viste de rojiamarillo - Al Día (Spanish)
- ADR cambia su estilo para la nueva temporada - Ramonense
- Alexander Castro pide el embargo del Herediano - Nación (Spanish)
- Alexander Castro – FIFA competition record
- "Costa Rica - Details International Matches 1993-2003". RSSSF. Archived from the original on 24 September 2008. Retrieved 2008-10-20.
- "Copa América 2004". RSSSF. Archived from the original on 22 October 2008. Retrieved 2008-10-20.
- "CONCACAF Championship, Gold Cup 2003 - Full Details". RSSSF. Archived from the original on 24 October 2008. Retrieved 2008-10-20.
- Alexander Castro at National-Football-Teams.com
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