| Catherine Nelson | |
| Office: | Member of Armagh City, Banbridge and Craigavon District Council |
| Constituency: | Craigavon |
| Term Start: | 2 May 2019 |
| Predecessor: | Fergal Lennon |
| Constituency1: | Lurgan |
| Term Start1: | 19 June 2018 |
| Term End1: | 2 May 2019 |
| Predecessor1: | Máire Cairns |
| Successor1: | Sorchá McGeown |
| Constituency2: | Lurgan |
| Term Start2: | 22 May 2014 |
| Term End2: | 5 May 2016 |
| Predecessor2: | Council established |
| Successor2: | Liam Mackle |
| Constituency Am3: | Upper Bann |
| Assembly3: | Northern Ireland |
| Term Start3: | 5 May 2016 |
| Term End3: | January 2017 |
| Predecessor3: | Dolores Kelly |
| Successor3: | Dolores Kelly |
| Office4: | Member of Craigavon Borough Council |
| Constituency4: | Loughside |
| Term Start4: | 25 January 2014 |
| Term End4: | 22 May 2014 |
| Predecessor4: | Johnny McGibbon |
| Successor4: | Council abolished |
| Birth Date: | 26 November 1987 |
| Birth Place: | Lurgan, Northern Ireland |
| Nationality: | Irish |
| Party: | Sinn Féin |
| Alma Mater: | Queen's University Belfast |
| Profession: | Teacher |
Catherine Nelson (born Catherine Seeley; 26 November 1987)[1] is an Irish Sinn Féin politician and schoolteacher, serving as an Armagh City, Banbridge and Craigavon councillor for the Craigavon DEA since 2019.
Nelson was previously a Member of the Legislative Assembly (MLA) for Upper Bann from the 2016 to 2017.
Previously a schoolteacher at the non-denominational Belfast Boys' Model School, she resigned after allegedly enduring a campaign of harassment, which began after she was co-opted as a Sinn Féin councillor on Craigavon Borough Council in 2014. The Protestant Coalition opposed her employment at the school over her affiliation with Sinn Féin.[2]
At the 2016 Northern Ireland Assembly election, she was elected as one of two Sinn Fein representatives for the Upper Bann constituency.
On 16 January 2017, it was announced she would not seeking re-election at the 2017 assembly election and would return to work as a schoolteacher.[3]
In 2018, she was co-opted as a councillor onto Armagh City, Banbridge and Craigavon Borough Council.
On 25 May 2024, Nelson was announced as the Sinn Fein candidate for Upper Bann in the 2024 United Kingdom general election.[4]