K-196 is a 28.474-mile-long (45.824 km) east–west state highway in Harvey and Butler Counties in the U.S. state of Kansas. K-196's western terminus is at Interstate 135 (I-135), U.S. Route 81 (US-81) and K-15 just south of Newton and the eastern terminus is at K-254 just east of El Dorado, Kansas. The highway runs along the south border the town of Whitewater and bypasses Potwin to the south.