The 1973–74 Tercera División was the 40th edition since its establishment.
League tables
Group I
Group II
Group III
Group IV
Promotion playoff
Relegation playoff
Season records Most wins: 24, Cultural Leonesa, Alavés and Eibar. Most draws: 16, Hellín. Most losses: 26, Osasuna Promesas. Most goals for: 67, Alavés. Most goals against: 83, Melilla Industrial. Most points: 57, Cultural Leonesa. Fewest wins: 4, Osasuna Promesas. Fewest draws: 4, Getxo, Eibar, Palencia and Tortosa. Fewest losses: 4, Recreativo de Huelva. Fewest goals for: 22, Tolosa. Fewest goals against: 21, Alavés. Fewest points: 16, Osasuna Promesas.
Notes
External links RSSSF Futbolme