Newry, Mourne and Down District Council (Irish: Comhairle Ceantair an Iúir, Mhúrn agus an Dúin) is a local authority in Northern Ireland that was established on 1 April 2015.

At the 2019 Northern Ireland local elections, Sinn Féin became the largest party with 16 seats.

For the purpose of elections the council is divided into seven district electoral areas (DEA):[6] † Co-opted to replace an elected councillor The Mournes DEA DUP Councillor Glyn Hanna is currently the focus of media over the William Walker pervert case.

William Walker, former Chairperson of Down District Council in 2014/2015, and DUP councillor for Rowallane, was in court in June 2023 over the charges.

He admitted to sexual offences with underage girls, and Councillor Hanna provided a "positive" character reference for Walker.