The 2001–02 Argentine Primera B Nacional was the 16th season of second division professional of football in Argentina.
A total of 25 teams competed; the champion and runner-up were promoted to Argentine Primera División.
Note: Arsenal won 3–2 on aggregate, promoting to Primera División.
The best two teams in the overall standings that weren't promoted (Huracán (TA) and Gimnasia y Esgrima (CdU)) played against the 18th and the 17th placed of the Relegation Table of 2001–02 Primera División.
Note: Clubs with indirect affiliation with AFA are relegated to the Torneo Argentino A, while clubs directly affiliated face relegation to Primera B Metropolitana.