Monaghan County Council (Irish: Comhairle Contae Mhuineacháin) is the local authority of County Monaghan, Ireland. As a county council, it is governed by the Local Government Act 2001. The council is responsible for housing and community, roads and transportation, urban planning and development, amenity and culture, and environment. The council has 18 elected members. Elections are held every five years and are by single transferable vote. The head of the council has the title of Cathaoirleach (chairperson). The county administration is headed by a chief executive, Robert Burns. The county town is Monaghan.

Monaghan County Council was established on 1 April 1899 under the Local Government (Ireland) Act 1898 for the administrative county of County Monaghan, succeeding the judicial county of Monaghan.

Originally Monaghan Courthouse had been the meeting place of Monaghan County Council. The county council moved to the County Offices in Glen Road in 1981.

Monaghan County Council has two representatives on the Northern and Western Regional Assembly where they are part of the Border Strategic Planning Area Committee.

The Local Government (Ireland) Act 1919 introduced the electoral system of proportional representation by means of the single transferable vote (PR-STV) for the 1920 Irish local elections. County Monaghan was divided into 4 county electoral areas to elect the 20 members of the council. This electoral system has been retained, with 18 members of Monaghan County Council now elected for a five-year term of office from 3 multi-member local electoral areas (LEAs).

County Monaghan is divided into LEAs and municipal districts, defined by electoral divisions.

The following were elected at the 2024 Monaghan County Council election.

This list reflects the order in which councillors were elected on 7 June 2024.