Is there a city in Puerto Rico called San German?

Yes, San Germán is a city and municipality in southwest Puerto Rico, located in the southern portion of the island, south of Mayagüez and Cabo Rojo; west of Sabana Grande; and east of Lajas. San Germán is spread over 17 wards and San Germán Pueblo (the downtown area and the administrative center of the city). It is part of the Mayagüez Metropolitan Statistical Area.