2023 Paraguayan Primera B Metropolitana

The 2023 Primera División B, or Primera División B Metropolitana in order to distinguish it from the 2023 Paraguayan Primera B Nacional, was the eightieth season of the Primera División B Metropolitana, one of the three leagues of Paraguay's Tercera División, the third-tier of the country's football league system, in which clubs from the Asunción metropolitan area and Central Department take part. In this edition a total of 17 teams competed.

The champion of the tournament directly get promoted to the Second Division, the División Intermedia. The runner-up have the right to dispute the third place for promotion with the champion of the Primera B Nacional.

Competition system
The mode of dispute would be maintained as in previous seasons, round-robin matches, that is, two rounds made up of 17 matchdays each. The team that accumulates the most points at the end of the 34th matchday dates will be crowned champion. In case of parity of points between two contestants, the title is defined in an extra match. If there are more than two in dispute, it is resolved according to the following parameters:
 * 1) Goal difference;
 * 2) Most goals scored;
 * 3) Greater number of goals scored as a visitor;
 * 4) Raffle.

Relegation
Relegation is determined at the end of the season by computing an average of the number of points earned per game over the past three seasons. The two teams with the lowest average will be relegated to the Primera División C for the following season.