Paraguayan Primera División B Nacional

The Primera División B Nacional (National First Division B, in English), commonly known as Primera B Nacional or Nacional B, is one of the three leagues of Paraguay's Tercera División, the third-tier of Paraguayan football league system, in which clubs and teams from the leagues of the interior of the country compete. The championship is organized by the Unión del Fútbol del Interior, in association with the Paraguayan Football Association.

Teams
These are the teams that are participating in the 2023 season.