The M30 motorway () is a Hungarian motorway that connects the M3 motorway to the Slovak R4 expressway near the border town of Tornyosnémeti via Miskolc, forming part of European routes E71 and E79. The first section opened to the public in 2002, and reached the border area in October 2021.
The road is considered part of the planned Via Carpathia from the Baltic coast to Sofia. It follows the route of Main road 3.