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The Regiment was formed in 1950 for service in the Korean War and made up of
The Republic of Korea Presidential Unit Citation was awarded to 16 Field Regiment RNZA for service in the Battle of Kapyong. The award was accepted but the citation was not worn.
The Regiment was disbanded at the end of the war in 1954 but was reconstituted in 1958 as part of the Regular Force Brigade Group, with 161 Battery, no 162 Battery, and 163 Battery as a troop equipped with 25-pounder guns. 163 Battery was disbanded in 1963 and re-established in 1993.
 In 1965, 161 Battery was sent to Vietnam where it served until 1971. Battery members were prepared for their role in Vietnam by 161 Battery Depot. The Presidential Unit Citation 1st Class was presented to the Battery in 1977 for service during the Vietnam War, and in 1995 the unit received the Meritorious Unit Commendation (MUC) in recognition of service with the United States 173D Airborne Brigade. Initially equipped with L5 pack howitzers, these were replaced in 1967 with 105mm M2A2 howitzers.
Since returning from Vietnam, the Regiment has been through many reorganisations. Today, 16 Field Regiment is made up of Regular Force (RF) and Territorial Force (TF) personnel. In 2000 and 2001, members of the Regiment formed part of the New Zealand Battalion on peacekeeping duty in East Timor. The 105mm light gun was introduced in 1987 and remains in service today.
Structure
 
The structure adopted in 1999 is
| RHQ | RF | Linton |
| HQ Bty | RF | Linton |
| 161 Battery | RF | Linton |
| 163 Battery | RF | Waiouru |
| 16 Field Regiment Workshops | RF/TF | Waiouru |
| 43 Air Defence Battery (Lt) | RF/TF | Linton |
| School of Artillery | RF | Waiouru |
which followed a TF reorganisation:
- 4 Med Bty merged with 11 (A) Bty and attached to the Auckland Northland Regiment.
- 11 Bty merged with 4 Med Bty and attached to the Auckland Northland Regiment.
- 22 Bty reformed into a troop and attached to the Wellington Hawkes Bay Regiment. Will soon reform into an air defence troop.
- 31 Bty disbanded.
- 32 Bty reformed into an OP troop attached to the Canterbury Regiment.
Its 1998 structure was
| RHQ | RF | Linton |
| HQ Bty | RF | Linton |
| 161 Bty | RF | Linton |
| 163 Bty | RF | Waiouru |
| 11(A) Bty | TF | Auckland |
| 22(D) Bty | TF | Wellington |
| 4(G) Medium Bty | TF | Hamilton |
| 16 Field Regt Wksps | RF/TF | Waiouru |
| 43 AD Bty (Lt) | RF/TF | Linton |
| School of Artillery | RF | Waiouru |
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