Caloocan's 1st congressional district, also known as North Caloocan district, is one of the three congressional districts of the Philippines in the city of Caloocan.

It has been represented in the House of Representatives of the Philippines since 1987.

[4] The district consists mostly of the North Caloocan barangays north of EDSA and Circumferential Road 4: Barangays 1 to 4 of Zone 1, Barangays 77 to 85 in Zones 7 and 8, and Barangays 132 to 177 in Zones 12 to 15.

[5][6] It also included Barangays 178 to 188 in Zones 15 and 16 in the northern portion of Caloocan until their redistricting to the third district that took effect in 2022.

[7] It is currently represented in the 19th Congress by Oscar Malapitan of the Nacionalista Party (NP).