Bulacan's 2nd congressional district is one of the seven congressional districts of the Philippines in the province of Bulacan. It has been represented in the House of Representatives of the Philippines since 1916 and earlier in the Philippine Assembly from 1907 to 1916.^[3] The district consists of the city of Baliwag and the municipalities of Bustos and Plaridel. It is currently represented in the 19th Congress by Tina Pancho of the National Unity Party (NUP).^[4]

Prior to its second dissolution in 1972, the second district encompassed the eastern Bulacan municipalities of Angat, Baliuag (Baliwag), Bocaue, Marilao, Meycauayan, Norzagaray, Obando, San Ildefonso, San Jose del Monte, San Miguel, San Rafael, Santa Maria, and Valenzuela (formerly Polo).^[5] It also included the municipality of Polo, which last consisted of the northern portion of the present-day Valenzuela,^[6] until it was merged with Valenzuela in 1963.^[7] Following the restoration of the Congress in 1987, the district was reconfigured to encompass Balagtas, Baliwag, Bocaue, Bustos, Guiguinto, Pandi, and Plaridel, amid the addition of two districts for Bulacan.^[8][9] Balagtas, Bocaue, Guiguinto, and Pandi were later excised from the district to form the fifth district effective 2022, leaving it with three in its current jurisdiction.^[10]

• Legislative districts of Bulacan