Dionicio Gustavo (born January 18, 1983, in Santo Domingo) is a karateka from the Dominican Republic who twice won the gold medal at the Pan American Games.

[8] While fighting Chilean David Dubó, Gustavo suffered an injury in his left eye during the 2009 Pan American Karate Championship in Willemstad, Curaçao.

[11] That same year he won the gold medal in under 75 kg and the bronze in kumite at the 2010 Central American and Caribbean Games.

[14] The Dominican Republic Sports Minister gave him a house in Monte Plata, just before he departed to Guadalajara, Mexico, to compete at the Pan American Games.

[16] He not only carried the national flag, but won the gold medal, defeating the American Thomas Scott in the final match.