Zamboanga Sibugay's at-large congressional district was the lone congressional district of the Philippines in the province of Zamboanga Sibugay for the House of Representatives from 2001 to 2007.
[1] It was created after the passage of Republic Act No.
8973 in 2000 which partitioned the province of Zamboanga del Sur and established the province of Zamboanga Sibugay.
[2] The district was represented by Belma A. Cabilao for the entirety of its existence.
She was redistricted to Zamboanga Sibugay's 1st congressional district after the passage of Republic Act No.