| Brian Hatfield | |
| State Senate: | Washington |
| District: | 19th |
| Term Start: | November 17, 2006 |
| Term End: | August 31, 2015 |
| Predecessor: | Mark Doumit |
| Successor: | Dean Takko |
| State House1: | Washington |
| District1: | 19th |
| Term Start1: | September 23, 1994 |
| Term End1: | November 23, 2004 |
| Predecessor1: | Mike Riley |
| Successor1: | Dean Takko |
| Birth Name: | Brian Allen Hatfield |
| Birth Date: | 8 July 1966 |
| Birth Place: | Aberdeen, Washington, U.S. |
| Education: | Grays Harbor College (AA) Washington State University (BA) |
Brian Allen Hatfield[1] (born July 8, 1966) served in the Washington State Senate and the Washington State House of Representatives, representing the 19th Legislative District, a district that includes Cowlitz, Grays Harbor, Pacific, Lewis and Wahkiakum Counties.
After serving ten years in the Washington State House of Representatives(1994–2004), Hatfield resigned in 2004 to work full-time for Lieutenant Governor Brad Owen.
He was appointed in 2006 to the Senate to replace Mark Doumit. He received 73.89% of the vote in the 2007 special election and was re-elected, without opposition, to a four-year term in 2008. In the Senate, Hatfield chaired the Agriculture, Water & Rural Economic Development Committee and served on the Economic Development, Trade & Innovation Committee and the Ways & Means Committee. On September 1, 2015, Hatfield resigned to serve as Washington Governor Jay Inslee’s sector lead for forest products. In December of 2021, Hatfield was picked by Washington Secretary of State Steve Hobbs to serve as his Legislative Director.