K-260 is a 3.621-mile-long (5.827 km) east–west state highway through Moundridge in the U.S. State of Kansas. It connects at both ends to Interstate 135 (I-135) and U.S. Route 81 (US-81). The section of K-260 from Moundridge northward is signed north–south and the section from Moundridge westward is signed east–west. The route was first designated in 1966 when US-81 was realigned onto I-35W, now known as I-135.