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.
[1] 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.
The 2 best of each group and the 2 best third teams will advance to the second stage.
The best 2 of each group will qualify to the knockout stage.
The champion played two-legged matches against the runner-up of the Primera B Metropolitana for a place in the División Intermedia.