The Cambridgeshire and Peterborough Combined Authority is a combined authority covering the ceremonial county of Cambridgeshire in the East of England. The authority was established on 3 March 2017. The authority is led by the directly elected Mayor of Cambridgeshire and Peterborough.

Peterborough City Council is the local authority for Peterborough in the East of England. It is a unitary authority, having the powers of a non-metropolitan county and district council combined. The City was incorporated as a municipal borough in 1874; from 1888, it fell within the jurisdiction of the Soke of Peterborough county council and from 1965, Huntingdon and Peterborough county council. In 1974, it was replaced by a wholly new non-metropolitan district, broadly corresponding to the Soke, in the new enlarged Cambridgeshire. In 1998, Peterborough became independent of Cambridgeshire as a unitary authority, but the city continues to form part of that county for ceremonial purposes as defined by the Lieutenancies Act 1997.