Kristen Brunkow O'Shea (born July 10, 1992) is an American politician who served as a Republican member of the Kansas Senate from the 18th district. She assumed office in 2021. Her district was anchored in northern Topeka, and also includes the cities of Silver Lake, Rossvile, St. Marys and Wamego. She did not seek re-election in 2024, withdrawing after being the only person to file for the seat.