Maxine Elizabeth Dexter (née Johnson, born December 5, 1972) is an American physician and politician serving as the U.S. representative for Oregon's 3rd congressional district since 2025. The district includes most of Portland east of the Willamette River. A member of the Democratic Party, she previously represented the 33rd district of the Oregon House of Representatives from 2020 to 2024, which covers parts of Northwest Portland, as well as Cedar Mill, Oak Hills, and most of Bethany.