| Unit Name: | 551 Rocket Regiment |
| Dates: | 1963 - present |
| Country: | India |
| Allegiance: | India |
| Branch: | Indian Army |
| Type: | Artillery |
| Size: | Regiment |
| Equipment: | BM-30 Smerch |
| Identification Symbol: | 551 Rkt Regt |
| Identification Symbol Label: | Abbreviation |
| Nickname: | Tornadoes First of Smerch |
| Motto: | Sarvatra, Izzat-O-Iqbal (Everywhere with Honour and Glory) |
| Colors: | Red & Navy Blue |
| Anniversaries: | 28 September – raising day |
551 Rocket Regiment is part of the Regiment of Artillery of the Indian Army.
The regiment was raised at Ranchi on 28 September 1963 with Ahir troops. The unit became the first unit in the Indian Army to be converted to a Smerch weapon system unit on 9 July 2007 under the command of Colonel Rajesh Srivastava.