Penang Free School is a secondary school located on Jalan Masjid Negeri (previously Green Lane), George Town, Penang, Malaysia. Although the medium of instruction is now Malay, Penang Free School is the first English-medium school in South East Asia and is the oldest recorded school in the country. Alumni are known as "Old Frees". There is a history of rivalry with St. Xavier's Institution, another of Penang's premier schools, which also claims the title of Malaysia's oldest school.