Northern Samar's 2nd congressional district is a congressional district in the province of Northern Samar, Philippines. It has been represented in the House of Representatives since 1987. The district covers the province's eastern half which contains the municipalities of Catubig, Gamay, Laoang, Lapinig, Las Navas, Mapanas, Palapag, Pambujan, San Roque and Silvino Lobos. It is currently represented in the 18th Congress by Harris Christopher M. Ongchuan of the National Unity Party (NUP).