Mari Watanabe

Mari Watanabe is an American Democratic politician currently serving in the Oregon House of Representatives. She represents the 34th district, which contains portions of Multnomah and Washington counties and includes the communities of Bethany, Bonny Slope, Cedar Mill, Oak Hills, Rockcreek, and Tanasbourne as well as parts of northern Beaverton and northwestern Portland.

Watanabe was selected by Multnomah and Washington County Commissioners at a joint meeting on January 16, 2025 to fill the vacant seat, beating out candidates Sarah Beachy and Alexandria Goddard. The vacancy was created by Lisa Reynolds's move to the Oregon Senate to fill the vacancy created by Elizabeth Steiner's election as Oregon State Treasurer.

She is the first Japanese American to ever serve in either branch of the Oregon Legislature.