Rizal's 2nd congressional district is one of the six congressional districts of the Philippines in the province of Rizal. It has been represented in the House of Representatives of the Philippines since 1916 and earlier in the Philippine Assembly from 1907 to 1916. The district consists of the municipalities of Baras, Cardona, Jalajala, Morong, Pililla, Tanay and Teresa. It is currently represented in the 19th Congress by Emigdio P. Tanjuatco III of the Liberal Party (LP).
Prior to its second dissolution in 1972, the district consisted of towns that all currently remain in Rizal, as well as the present-day Metro Manila cities of Pasig (the then-seat of Rizal provincial government), Marikina, and the eastern part of Quezon City that was previously part of the aforementioned cities. After the creation of Metro Manila in 1975, the second district then comprises the northern and eastern part of the reduced province of Rizal beginning in 1987. In 2021, the municipalities of Rodriguez and San Mateo, which have been part of the 2nd district since its creation, have been separated from the district to form their own respective legislative districts as the 3rd and 4th legislative districts of Rizal, respectively. by virtue of Republic Act No. 11533. Their first representatives were elected in the 2022 Philippine general elections.