Kansas's 23rd Senate district is one of 40 districts in the Kansas Senate. It has been represented by Republican Adam Thomas since 2025.
District 23 covers much of Olathe in the south-central Johnson County suburbs of Kansas City.
The district is located entirely within Kansas's 3rd congressional district, and overlaps with the 14th, 15th, 26th, 49th, and 78th districts of the Kansas House of Representatives.