Sepanggar is a federal constituency in West Coast Division (Kota Kinabalu District), Sabah, Malaysia, that has been represented in the Dewan Rakyat since 2004.
The federal constituency was created in the 2003 redistribution and is mandated to return a single member to the Dewan Rakyat under the first past the post voting system.
As of 2020, Sepanggar has a population of 336,253 people.
According to the gazette issued on 21 November 2025, the Sepanggar constituency has a total of 26 polling districts.