Flag of Lower Saxony
| State civil flag (Landesflagge) | |
| Use | Civil and state flag |
|---|---|
| Proportion | 2:3 |
| Adopted | 1951 |
| State Flag (Landesdienstflagge) at sea | |
| Use | State ensign |
| Proportion | 3:5 |
| Adopted | 1951 |
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The flag of Lower Saxony consists of the flag of the Federal Republic of Germany in Schwarz-Rot-Gold, with the coat of arms of Lower Saxony, shifted slightly toward the hoist. This flag is the civil and state flag. A double tailed version in 3:5 ratio is used as the state ensign.