| Margaret O'Neil | |
| Office: | Member of the Maine House of Representatives |
| Termstart: | December 7, 2022 |
| Predecessor: | Peter Lyford |
| Constituency: | 129th district |
| Termstart1: | December 7, 2016 |
| Termend1: | December 7, 2022 |
| Predecessor1: | Justin Chenette |
| Successor1: | Holly Eaton |
| Constituency1: | 15th district |
| Birth Name: | Margaret M. O'Neil[1] |
| Birth Place: | Portland, Maine, U.S. |
| Party: | Democratic |
| Residence: | Saco, Maine, U.S. |
Margaret "Maggie" O'Neil is an American politician who is currently representing part of the city of Saco in the 129th district in the Maine House of Representatives.[2] She is in her fourth term having previously served three terms as the representative for the 15th district.[3]
O'Neil grew up in Saco, Maine and attended Catherine McAuley High School in Portland. She graduated with a degree in Classics and History from the University of King's College in Halifax, Nova Scotia. O'Neil served in the Maine Conservation Corps and later worked as a park ranger at Ferry Beach State Park in Saco.
O'Neil was first elected to the Maine House of Representatives in November 2016, succeeding fellow Democrat Justin Chenette. At that time, she was the youngest woman serving in the Maine Legislature. She currently serves as the House Chair of the Joint Standing Committee on Agriculture, Conservation and Forestry and as a member of the Government Oversight Committee.[4] O'Neil is currently a student at the University of Maine School of Law.