The 1993–94 Argentine Primera B Nacional was the eight season of second division professional of football in Argentina.
A total of 22 teams competed; the champion and runner-up were promoted to Argentine Primera División.
The Second Promotion Playoff or Torneo Reducido was played by the teams placed 2nd to 8th in the overall standings: Quilmes (2nd), San Martín (T) (3rd), Colón (4th), Talleres (C) (5th), Nueva Chicago (6th), Instituto (7th) and Atlético Tucumán (8th), and the champion of Primera B Metropolitana: Chacarita Juniors.
Note: Talleres de Córdoba won 4–2 on aggregate, promoting to Primera División.
Note: Clubs with indirect affiliation with AFA are relegated to their respective league of his province according to the Argentine football league system, while clubs directly affiliated face relegation to Primera B Metropolitana.