| Season: | 1951 |
| Nextseason: | 1952 |
Following are the results of the 1951 Class B football championship. FC MVO Moscow winning the championship.
Six teams were relegated from the 1950 Soviet Class A (top tier).
No teams received direct promotion. Only three teams were promoted from republican competitions through last year post-season playoffs. One more was replaced, Lokomotiv for Krasnaya Zvezda.
To the play-off qualified the champion of the 1951 Football Championship of the Ukrainian SSR and the worst Ukrainian team of masters of the 1951 Soviet Class B.|}
| Number | Union republics | Team(s) | |
|---|---|---|---|
| 4 | MVO Kalinin, FC Lokomotiv Moscow, FC Torpedo Stalingrad, FC Krasnoye Znamya Ivanovo | ||
| 2 | FC Lokomotiv Kharkov, FC Spartak Uzhgorod | ||
| 1 | FC Dinamo Minsk | ||
| 1 | FC Neftianik Baku | ||
| 1 | FC Spartak Vilnius | ||
| 1 | FC Dinamo Yerevan | ||
| 1 | FC Burevestnik Kishinev | ||
| 1 | FC Krasnaya Zvezda Petrozavodsk | ||
| 1 | DO Tashkent | ||
| 1 | FC Kalev Tallinn | ||
| 1 | FC Dinamo Stalinobad | ||
| 1 | FC Trudovye Rezervy Frunze | ||
| 1 | FC Dinamo Alma-Ata | ||
| 1 | FC Spartak Asgabat |