Bulacan's 3rd congressional district is one of the seven congressional districts in the province of Bulacan, Philippines. It has been represented in the House of Representatives since 1987. The district consists of municipalities in northern and eastern Bulacan, namely Doña Remedios Trinidad, San Ildefonso, San Miguel, and San Rafael. It is currently represented in the 20th Congress by Cholo Violago of the Partido Federal ng Pilipinas (PFP).
Angat and Norzagaray were once part of the district until they were excised to form the sixth district effective 2022.