The surname Loza was first found in Castile, an important Christian kingdom of medieval Spain. This web page shows only a small excerpt of our Loza research. You can see how Loza families moved over time by selecting different census years. The Loza family name was found in the USA, the UK, and Canada between 1880 and 1920. The surname Loza carries the meaning " Family name of Hispanic/Latino origin." It is derived from the Spanish language and has been passed down through generations, reflecting the occupations, … The religious adherence of those bearing the Loza last name is primarily Orthodox (89%) in Russia, Orthodox (86%) in Belarus, Greek Orthodox (67%) in Lebanon and Orthodox (81%) in Ukraine. Loza : 1: Spanish: habitational name from any of several places called Loza (in Galicia Asturias and the Basque Country) probably named with loza ‘clay earthenware’.