| Assistant Chief of the Naval Staff | |
|---|---|
&sq=&lang=&file=File:Rear_Admiral_ensign_of_Indian_Navy.svg) Flag of the ACNS (Rear Admiral flag) | |
 Indian Navy | |
| Type | Assistant Principal Staff Officer (APSO) |
| Abbreviation | ACNS |
| Seat | Naval Headquarters, New Delhi |
| Formation | 1967 |
The Assistant Chief of the Naval Staff (ACNS) is a senior appointment in the Indian Navy. The ACNS is an assistant PSO (Principal Staff Officer) at Naval Headquarters in New Delhi. At present, there are eight appointments of ACNS who head different directorates. The appointments are held by a Two star officer in the rank of Rear Admiral.