Merbok is a mukim in Kuala Muda District, Kedah, Malaysia. The historical Bujang Valley is located here. It is also the location for the Universiti Teknologi MARA Kedah Campus (UiTM Merbok/Sungai Petani).
Merbok is a federal constituency in Kedah, Malaysia, that has been represented in the Dewan Rakyat since 1986.
The federal constituency was created in the 1984 redistribution and is mandated to return a single member to the Dewan Rakyat under the first past the post voting system.