This name derives from the U.S. state “Pennsylvania” (Penn's Woods), composed of two elements: From the Welsh surname “Penn” (head) plus from the Middle French “sylvain” (1530), from the Latin “silvanus”, pertaining to wood or forest" (originally only in silvanae "goddesses of the woods"), from the Latin “silva” (wood, woodland, forest, orchard, grove). Penn is a borough in Westmoreland County, Pennsylvania, United States.