Monito Island (Little Mona) (Spanish: Islote Monito) is an uninhabited island about 3.1 miles (5 kilometers) northwest of the much larger Mona Island. Monito is the masculine diminutive form of Mona in Spanish. It is one of three islands in the Mona Passage, and part of the Isla de Mona e Islote Monito barrio, a subdivision of the municipality of Mayagüez, Puerto Rico.