| Flag of the Russian SFSR (1954–1991) | |
| Use | Historical |
|---|---|
| Proportion | 1:2 |
| Adopted | January 9, 1954 |
| Design | "The state flag of the Russian Soviet Federative Socialist Republic presents itself as a red rectangular sheet with a light-blue stripe at the pole extending all the width which constitutes one eighth length of the flag." |
| Flag of the Russian SFSR (1918–1937) | |
| Use | Historical |
| Proportion | 1:2 |
| Adopted | June 17, 1918 |
| Flag of the Russian SFSR (1937–1954) | |
| Use | Historical |
| Proportion | 1:2 |
| Adopted | January 21, 1937 |
| Flag of the Russian SFSR (1991) | |
| Use | Historical |
| Proportion | 1:2 |
| Adopted | November 1, 1991 |
Last Soviet-era (before 1991) flag was adopted by the Russian SFSR in 1954. The constitution stipulated:
Between 1937 and the adoption of the flag to the right, the flag was red with the gold Cyrillic characters РСФСР (RSFSR) in the top-left corner, in a traditional viaz' style of ornamental Cyrillic calligraphy.