| Cathy Mason | |
| Honorific-Suffix: | MLA |
| Constituency Am2: | South Down |
| Assembly2: | Northern Ireland |
| Term Start2: | 5 May 2022 |
| Predecessor2: | Emma Rogan |
| Office3: | Member of Newry, Mourne and Down District Council |
| Constituency3: | Slieve Croob |
| Term Start3: | 2 May 2019 |
| Term End3: | 5 May 2022 |
| Predecessor3: | John Rice |
| Successor3: | Jim Brennan |
| Birth Place: | Drumaness, Northern Ireland |
| Nationality: | Irish |
| Party: | Sinn Féin |
| Residence: | Loughinisland |
Cathy Mason is a Sinn Féin politician who was elected to the Northern Ireland Assembly from South Down in the 2022 election.[1]
In the 2019 Northern Ireland local elections, Mason was elected to the Newry, Mourne and Down District Council as a Councillor of the district electoral area (DEA) of Slieve Croob, winning 1,069 first preference votes and being elected on the fifth count. [2] Mason became Chairperson of the Council on 1st June 2021.[3]
Mason was elected to the Northern Ireland Assembly from South Down in the 2022 election, receiving 9,963 first preference votes and being elected on the first count. [4]