Belfast North is a parliamentary constituency in the United Kingdom House of Commons. The current MP is John Finucane of Sinn Féin.

Belfast is the capital city and principal port of Northern Ireland, standing on the banks of the River Lagan and connected to the open sea through Belfast Lough and the North Channel. It is second to Dublin as the largest city on the island of Ireland with a population in 2021 of 345,418 and a metro area population of 671,559.