| 4th Battalion, Royal Australian Regiment | |
|---|---|
| Active | 1 February 1964 – 15 August 1973 1 February 1995 – 19 June 2009 |
| Country | Australia |
| Branch | Australian Army |
| Type | Infantry (1964-1973, 1995-1997) Special forces (1997-2009) |
| Role | Special operations Counter-terrorism Commando |
| Part of | Special Operations Command |
| Garrison/HQ | Holsworthy |
| Nickname(s) | 4 Commando |
| Motto(s) | Duty First |
| March | Inverbrackie |
| Engagements | Indonesian Confrontation |
| Decorations | Unit Citation for Gallantry |
| Commanders | |
| Colonel-in-Chief | HM The Queen (Australian Infantry Corps) |
| Insignia | |
| Unit colour patch |  |
The 4th Battalion, Royal Australian Regiment (4 RAR) was an infantry battalion (later a special forces unit) of the Australian Army, forming part of the Royal Australian Regiment and eventually Special Operations Command. The battalion was formed on 1 February 1964, converted to a special forces unit on 1 February 1997, and was renamed the 2nd Commando Regiment on 19 June 2009.