Walter López Castellanos

In this Spanish name, the first or paternal surname is López and the second or maternal family name is Castellanos.

Walter Alexander López Castellanos (born 22 September 1980) is a Guatemalan football referee. He refereed at 2014 FIFA World Cup qualifiers and 2018 FIFA World Cup qualifiers.^[1][2]

Walter López

López before a 2015 CONCACAF Gold Cup match at MetLife Stadium
Full name	Walter Alexander López Castellanos
Born	(1980-09-25) 25 September 1980 (age 44) Guatemala City, Guatemala
Domestic
Years	League	Role
	Liga Nacional de Fútbol de Guatemala	Referee
International
Years	League	Role
2006–	FIFA listed	Referee