| Quartal | quarter |
| Quartil | quartile |
| Quartär | Quaternary |
| Quargel | Olomouc cheese |
| Quart | quart |
| Quantil | quantile |
| Quintal | quintal |
| quotal | pro rata |
| Quaffel | quaffle |
| Quarzit | quartzite |
| Aquarell | watercolour watercolor |
| Quaddel | welt |
| Quadrat | square |
| Quagga | quagga |
| Qual | torment agony torture pain |
| Qualität | quality |
| Quant | quantum |
| Quanten | big trotters boats clodhoppers |
| Quantor | quantifier |
| Quantum | quantum |