| Marjorie L. Byrnes | |
| State Assembly: | New York |
| District: | 133rd |
| Term Start: | January 9, 2019 |
| Predecessor: | Joseph Errigo |
| Party: | Republican |
| Birth Date: | 22 September 1960 |
| Children: | 2 |
| Residence: | Caledonia, New York, U.S. |
| Website: | |
| Signature: | Marjorie Byrnes Signature.png |
Marjorie L. Byrnes is an American politician and attorney from the state of New York. A Republican, Byrnes has represented the 133rd district of the New York State Assembly, covering Livingston County and other areas to the south of Rochester, since 2019.[1] [2]
Byrnes worked as an attorney for 32 years. In that time, she served variously as a judge with the Rochester City Court, as an assistant district attorney for Monroe County, and most recently as court attorney to Livingston County Court Judge Dennis Cohen.[3]
After her retirement from the court system in 2017, Byrnes became a Caledonia Village Trustee.[1]
In 2018, Byrnes announced that she would launch a primary challenge to Republican incumbent Joseph Errigo, who had been selected by Republican leadership for the 133rd district in 2016 following Bill Nojay's suicide. Byrnes easily defeated Errigo, with 61% of the vote to his 39%.[4]
That November, Byrnes defeated Democrat Barbara Baer with 55% of the vote.[5] She took office on January 9, 2019.
Byrnes has lived in Caledonia for 12 years.[6]