| Season: | 1950 |
| Nextseason: | 1951 |
The 1950 Soviet football championship Class B was the 11th season of the Soviet football championship second tier and inaugural season of the Class B (predecessor of Soviet First League). In 1950 the Soviet football championship rebranded its both tiers from groups First (Pervaya Gruppa) and Second (Vtoraya Gruppa) to Classes A and B.
FC VMS Moscow won the championship.
The league was reduced from a multi-group tournament to single group to which were grandfathered seven teams from last season "Central Zone" and one team from every other zones, also two more teams were promoted. Many teams from last season were forced into relegation to their respective republican competitions.
No teams were relegated from the 1949 Soviet Pervaya Gruppa (top tier)
To the play-off qualified the champion of the 1950 Football Championship of the Ukrainian SSR and the worst Ukrainian team of masters of the 1950 Soviet Class B.|}
Worst team of the Russian SFSR qualified for relegation playoff. Both matches were taken place in Makhachkala. The city of Kalinin were champions of the 1950 Football Championship of the Russian SFSR.|}
For 1950 MVO Moscow was stationed in city of Kalinin.
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| Number | Union republics | Team(s) | |
|---|---|---|---|
| 4 | VMS Moscow FC Torpedo Gorky, FC Krasnoye Znamya Ivanovo, FC Dzerzhinets Chelyabinsk | ||
| 1 | FC Lokomotiv Petrozavodsk | ||
| 1 | FC Spartak Vilnius | ||
| 1 | DO Tashkent | ||
| 1 | FC Burevestnik Kishinev | ||
| 1 | FC Pischevik Odessa | ||
| 1 | FC Dinamo Alma-Ata | ||
| 1 | FC Trudovye Rezervy Frunze | ||
| 1 | FC Kalev Tallinn | ||
| 1 | FC Spartak Asgabat | ||
| 1 | FC Bolshevik Stalinobad |