GURPS WWII 用語変換表（Ｏ）
| −Ｏ− | ||
|---|---|---|
| 原文 | 翻訳委員会訳 | 完訳版 |
| Observed fire | ||
| Obstacles | ||
| Off-road movement | ||
| Office of Strategic Services | ||
| Officer | ||
| Oil | ||
| Okinawa | ||
| Old-guard officer character template | ||
| Omaha Beach | ||
| Operation Barbarossa | ||
| Operation Sea Lion | ||
| Operations | 〈軍事行動〉（技能） | |
| Organization | ||
| OSS | ||
| Overlord | ||