Senior warrant officer
Senior warrant officer (SWO) is a warrant officer rank in the Singapore Armed Forces and the South African National Defence Force.
Singapore
It is the second highest warrant officer rank, ranking below chief warrant officer.[1]
The division and formation regimental sergeant majors are mostly senior warrant officers. Many senior warrant officers remain in SAF Warrant Officer School to train and groom both junior and senior warrant officers to be dynamic warrant officers of the Singapore Armed Forces. Roles undertaken by Senior Warrant Officers include Formation Sergeant Majors,Division Sergeant Majors and Chief Master Trainers.
| NATO rank code | WO-1 | WO-2 | WO-3 | WO-4 | WO-4 | WO-5 |
| Image |  |  |  |  | ||
| Rank | Third warrant officer | Second warrant officer | First warrant officer | Master warrant officer | Senior warrant officer | Chief warrant officer |
| Abbreviation | 3WO | 2WO | 1WO | MWO | SWO | CWO |
South Africa
In 2008[2] the warrant officer ranks of the South African National Defence Force were expanded and the rank of senior warrant officer was created.
