Claudio Marrero Guzman is a Dominican professional boxer.

On 23 August 2013, Marrero lost to Jesús Cuellar for the interim WBA featherweight title on ESPN Friday Night Fights.

On 29 April 2017, he won the WBA interim, and IBO featherweight titles by knocking out Carlos Zambrano in the first round.

[1] He would lose the WBA belt in his next fight by KO against Jesus Rojas.

[2]