| Eileen Quiring O'Brien | |
| Office: | Chair of the Clark County Council |
| Predecessor: | Eric K. Holt |
| Successor: | Karen Dill Bowerman |
| Office1: | Member of the Clark County Council |
| Predecessor1: | Constituency established |
| Successor1: | Richard Rylander |
| Constituency1: | 4th district At-large 5th district |
| State Senate2: | Oregon |
| District2: | 4th |
| Predecessor2: | Paul Phillips |
| Successor2: | Ryan Deckert |
| State House3: | Oregon |
| District3: | 8th |
| Predecessor3: | Mary Alice Ford |
| Successor3: | Ryan Deckert |
| Birth Date: | 2 March 1948 |
| Birth Place: | York, Nebraska, U.S. |
| Party: | Republican |
| Spouse: | Abe |
| Children: | 5 |
| Residence: | Vancouver, Washington |
Eileen Quiring O'Brien (born March 2, 1948) is an American politician who served as a member of the Clark County Council from 2017 to 2022. A member of the Republican Party, she represented the 4th district from 2017 to 2019 and later served as the chair of the council, representing the at-large district from 2019 to 2022 and the 5th district in 2022.[1] [2] [3]