2023 Paraguayan Primera B Nacional

The 2023 Paraguayan Primera División B Nacional, known locally as Campeonato de la Primera División B Nacional 2023, was the twelfth season of the Paraguayan Primera División B Nacional, one of the three leagues of Paraguay's Tercera División, the third-tier of the country's football league system, in which clubs and teams from the leagues of the interior of the country compete.

This edition gave half a place to the 2024 División Intermedia for the champion, who must play a promotion against the runner-up of the 2023 Primera B Metropolitana.

First stage
They were divided into 3 groups of 6 teams each. The 2 best of each group and the 2 best third teams will advance to the second stage.