Lian, officially the Municipality of Lian, is a municipality in the province of Batangas in the Calabarzon of the Philippines. The population was 52,660 at the 2015 census. In the 2016 electoral roll, it had 32,446 registered voters. The patron saint of Lian is John the Baptist. ^ "Region IV-A ". Census of Population : Total Population by Province, City, Municipality and Barangay. PSA. Retrieved 20 June 2016. ^ "2016 National and Local Elections Statistics". Commission on Elections. 2016.