State Route 230 (SR 230) is a legislated, but unconstructed, state highway to be located in Adams and Whitman counties in the U.S. state of Washington. The highway would begin at a junction with concurrent highways Interstate 90 (I-90) and U.S. Route 395 (US 395) in Ritzville and travel east to an intersection with SR 23 in Ewan. Plans for the first highway first emerged in 1945, to be studied after the conclusion of World War II, however no action has been taken on construction of the highway.