Zamboanga del Sur's 3rd congressional district is an obsolete congressional district that encompassed the Sibuguey Bay region, a former territory of Zamboanga del Sur.
It was represented in the House of Representatives from its creation under the ordinance annex of the 1987 Constitution of the Philippines that divided the province into three congressional districts, until 2001.
[1][2] The district was dissolved following the ratification of Zamboanga Sibugay's organic law of November 2000 and elected its own provincial at-large representative beginning in May 2001.
[3][1]