The Autovía A-42 (also known as Autovía de Toledo) is a Spanish autovía which connects Madrid to Toledo. It was built in the mid-1980s as an upgrade of the N-401 road between the two cities, and received the A-42 designation in 2003 as part of the general renumbering of Spanish autovías.
In the mid-2000s, the Autopista AP-41 was built to supersede the A-42, though the autovía is still regularly used.
Beyond Toledo, the A-42 continues through the community of Castile-La Mancha to Tomelloso as the CM-42, itself an upgrade of the CM-400.
