U-am san (우암산, 牛岩山) is a 353.2meter peak in Chungju City, Chungcheongbuk-do, South Korea. It belongs to the Hannam Geumbuk jeongmaek(한남 금북정맥) mountain range that extends northwest from the Cheonhwangbong(천황봉) Peak of Songnisan(속리산) Mountain. It splits west from the stem of Nangseongsan(낭성산) Mountain leading to the east of Chungju.