The 1948 Vtoraya Gruppa of the Soviet football championship was the 9th season of the second tier football competitions in the Soviet Union.
The format of the competition was preserved from the previous season and included six groups, but number of participants was increased once again to total of 75. Group winners qualified to the final group, the winner of which was the ultimate winner and gained promotion to the Pervaya Gruppa (Top League).
Lokomotiv Kharkov won the championship. Five teams gained promotion to the 1949 Pervaya Gruppa.
Teams
Relegated teams
none
Promoted teams
With the asterisk identified teams that may have been created just before the start of the season.
Renamed teams
Spartak Vilnius last season was known as Dinamo Vilnius
Qualifying stage
Central Zone
Russian SFSR Zone 1
Russian SFSR Zone 2
Ukrainian Zone
The zone was expanded from 13 to 16 teams split into two subgroups. The relegated Bolshevik Zaporozhie was replaced with the best three teams of Donbas group (Group 6) including Lokomotiv Zaporozhie and the champion of the 1947 Football Championship of the Ukrainian SSR.
FC Shakhter Stalino was promoted to the 1949 Pervaya Gruppa without the need to qualify for the league's finals.