Full form of O4 is Officer grade: Captain or Colonel
Category:
Others
Language:
English
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Frequently Asked Questions
What is the full form of O4?
O4 stands for Officer grade: Captain or Colonel. Fullformexpand.com has 2 other full forms of O4 abbreviation.
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Citations
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"O4." Fullformexpand.com, https://www.fullformexpand.com/o4/officer-grade-captain-or-colonel. Accessed 13 Apr. 2026.
Fullformexpand.com, 2026. "O4." Accessed April 13, 2026. https://www.fullformexpand.com/o4/officer-grade-captain-or-colonel.
"O4." (n.d.). Fullformexpand.com. Retrieved April 13, 2026, from https://www.fullformexpand.com/o4/officer-grade-captain-or-colonel.
O4. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/o4/officer-grade-captain-or-colonel (Accessed: 13 April 2026).
| Abbreviation | Full Form | Category |
|---|---|---|
| O4 | Officer grade: Commander or Lieutenant Colonel |
Others
|
| O4 | Officer grade: Lieutenant Commander or Major |
Others
|
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O4 Full Form
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