"Variant of Catarina"
The name Catarino is commonly a male name from the "Portuguese" origin.
Catarino is a masculine form of the feminine name Catarina, the Spanish and Portuguese form of Katherine, with the masculine ending -o in place of -a. Names of this shape, a feminine name in -a paired with a masculine in -o, are a regular pattern in Spanish and Portuguese naming. United States birth records list Catarino from 1896.
Catarina means "Form of the Greek Catherine meaning pure.".
The pronunciation of Catarino is kah-tah-REE-no.