| Quintinus | Quentin Quinten Quinton |
| Quintin | Quentin |
| Quietismus | quietism |
| Nuntius | nuncio |
| Justinus | Justin |
| Quirinal | Quirinal Hill |
| Quinkunx | quincunx |
| Quinnat | chinook king salmon quinnat |
| Quintal | quintal |
| Quinte | fifth |
| Quintett | quintet |
| Quintupel | quintuplet |
| quintupel | quintuple |
| Quittung | receipt |
| Intine | intine |
| Quantil | quantile |
| Quantität | quantity |
| Tinnitus | tinnitus |
| Crispinus | Crispin |
| Tritonus | tritone |