Abner Cotto Román (born August 10, 1987) is a Puerto Rican professional boxer who currently competes in the lightweight division.

The pugilist compiled several national championships and recognitions, including his division's silver medal at the 2007 Pan American Games.

Following this tradition, he became involved in the discipline at the age of ten, receiving training from Efraín Román in Aguas Buenas' municipal gymnasium.

He won championships in numerous minor categories, eventually conquering Puerto Rico's South Central Regional title.

In 2004, while still incapable of competing in the adult division due to his age, Cotto was selected by the Puerto Rican Boxing Federation to form part of the national team's back up group.

After receiving this position, he participated in the Torneo Internacional José "Cheo" Aponte, advancing to the finals, where he lost to Olympian Carlos Velázquez but injured his arm.

The following month he won a silver medal as part of a preparatory event held in Trinidad and Tobago, receiving a trophy for "Best Fighter" in the process.

In the quarterfinals Cotto was matched against Luis Del Valle, a Puerto Rican who represented the United States, winning by points (13:9).

He defeated Jesús Cuéllar of Argentina (9:8) in his debut and Miguel Marriaga of Colombia (19:18) in the quarterfinals, but didn't qualify for the Olympic Games after losing to Robson Conceiçao (24:6) in the semifinals.

On October 26, 2011, Cotto won the Puerto Rican National Lightweight Championship, earning a decision over Fernando Torres.