Agusan del Norte's at-large congressional district

Agusan del Norte's at-large congressional district is a congressional district that encompasses the province of Agusan del Norte in the Philippines. It was declared an official district in the House of Representatives from 1969 to 1972 and in the Regular Batasang Pambansa from 1984 to 1986. The province of Agusan del Norte was created as a result of the partition of Agusan province in 1967, where Agusan del Norte encompasses the northern part of the area.

The district elected its first representative province-wide at-large during the 1969 Philippine House of Representatives elections. However, the representative system was eliminated following the dissolution of the lower house in 1972. This was later absorbed by the multi-member Region X's district for the national parliament in 1978. In 1984, provincial and city representations were restored and Agusan del Norte elected a member for the regular parliament. It finally became obsolete following the 1987 reapportionment that established two districts in the province under a new constitution.

The district was recreated in 2022 through a law that merged Agusan del Norte's two districts and made Butuan officially a single legislative district separate from the province. The district was contested again in May 2025. It will be represented in the 20th Congress by Dale Corvera of the Lakas–CMD.