Karabük is an electoral district of the Grand National Assembly of Turkey created in 1995.

It elects three members of parliament (deputies) to represent the province of the same name for a five-year term by the D'Hondt method, a party-list proportional representation system.

Until 1995, voters were registered to Zonguldak or Çankırı electoral districts.

Population reviews of each electoral district are conducted before each general election, which can lead to certain districts being granted a smaller or greater number of parliamentary seats.

As a small electoral district, Karabük's seat allocation has always been low.