Lamao is a barrio in Limay, Bataan, facing the Manila Bay in the Philippines. The population of Lamao is about 18,000, which made it the most populous barangay in Bataan. The current barangay chairman of Lamao is Restito "Bart" Reyes. Lamao is the home of Camp General Antonio Luna which incorporates the Government Arsenal.
Under the Big Mulberry Tree in front of the old administration building, right in the heart of Lamao, Gen. Eduard P. King signed the official surrender paper of 78,000 soldiers of the USAFFE under him to Masahara Homma of the Japanese Imperial Army.