As a constituent part of Oslo, Frogner is governed by both the overarching Oslo City Council and its own dedicated borough council. For the 2019–2023 term, the borough council comprises 15 seats distributed among several political parties. The Conservative Party holds the majority of seats, with Jens Lie serving as the council leader.
The political composition of the Frogner Borough Council for the 2019–2023 term is as follows:
- Conservative Party (Høyre): 7 seats
- Labour Party (Arbeiderpartiet): 2 seats
- Green Party (Miljøpartiet de Grønne): 2 seats
- Progress Party (Fremskrittspartiet): 1 seat
- Socialist Left Party (Sosialistisk Venstreparti): 1 seat
- Liberal Party (Venstre): 1 seat
- Red Party (Rødt): 1 seat