National Road 9 () a route belonging to the Polish national roads network. It runs from Radom, to Rzeszów. The route is part of the international European route E371. In Radom the road shares a part with the National Road 12, and in Opatów with the National Road 74. It is the only one-digit numbered national road for which there are no plans to build an expressway or motorway.
Before 2014, road 9 continued from Rzeszów to the Slovak border in Barwinek. This section is now part of road 19.