Román Alberto González Luna (born 17 June 1987), best known by his nickname "Chocolatito", is a Nicaraguan professional boxer.
He is the first boxer from Nicaragua to win world titles in four weight classes, having surpassed his mentor, idol, and former three-weight world champion, the late Alexis Argüello.
González is also the first boxer in history to win world titles in all four of the lowest weight classes: minimumweight, light flyweight, flyweight, and super flyweight.He held the WBA minimumweight title from 2008 to 2010; the WBA light flyweight title from 2011 to 2013; the WBC, Ring magazine, and lineal flyweight titles from 2014 to 2016; and the WBC super flyweight title from 2016 to 2017.
As of October 2019, he is ranked as the world's seventh best active super flyweight by The Ring magazine.
From September 2015 to March 2017, he was also ranked by The Ring as the world's best active boxer, pound for pound.
He is known particularly for his aggressive pressure fighting style.