Cognomen Quintilius (Quintilius 
) , around the globe, is a very rare family name. The family name Quintilius is habitual in Western Europe, particularly Germany, where it is a very rare surname. Very seldom, Quintilius is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Quintilius | Germany, Spain, United States |
| publius quintilius late Roman Republican jurist |
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| quintilius laetus urban prefect in 398 and 399 |
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