Mario Morales Coliseum (Spanish: Coliseo Mario Morales) is an indoor sporting arena that is located in Guaynabo, Puerto Rico. It used mainly for basketball, but it can also be used for volleyball. The coliseum's seating capacity is 5,500 seats.
The coliseum opened in 1983, and is named after basketball player Mario Morales. It is the home arena of the basketball team the Guaynabo Conquistadores. It also serves as the home court of the Mets de Guaynabo women's volleyball team in the LVSF.
Coordinates: 18°21′36″N 66°06′53″W / 18.359871°N 66.114587°W