|2nd/4th Battalion, Royal Australian Regiment
||15 August 1973 – 1 February 1995
||Lavarack Barracks, Townsville, Australia
The 2nd/4th Battalion Royal Australian Regiment (2/4 RAR) was an Australian Army infantry battalion. 2/4 RAR was formed on 15 August 1973 by linking 2nd Battalion, Royal Australian Regiment and 4th Battalion, Royal Australian Regiment. 2/4 RAR was unlinked to re-form 2 RAR and 4 RAR on 1 February 1995. Throughout its existence 2/4 RAR was based at Lavarack Barracks in Townsville and formed part of the 3rd Brigade.
Elements of 2/4 RAR served in Malaysia as Rifle Company Butterworth from 1975 until 1989, Cambodia in 1993 and Rwanda in 1994. In addition, 53 personnel were attached to 1 RAR during that Battalion's deployment to Somalia in 1993.