"Variant of Nicasius"
The name Nicasio is commonly a male name from the "Spanish" origin.
Nicasio is the Spanish form of the Latin name Nicasius, which comes from the Greek Nikasios and the root nike, meaning victory. The Latin form is recorded in the name of Nicasius, a fifth-century bishop of Reims. It has been used as a masculine given name in Spain and Latin America.
The pronunciation of Nicasio is nih-KAH-see-oh.