Last name Crispus (Crispus 
, Crisp 
, Crepe ) , throughout the world, is a common family name. The family name Crispus is habitual in British Virgin Islands, where it is quite a common surname, Reunion, and Australia, where it is quite a rare surname. In absolute terms, it most frequently occurs in the United States, the United Kingdom, and Australia. Much less frequently, Crispus is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Crispus | Democratic Republic of the Congo, Uganda, Kenya, Brazil, United States |
| Crisp | United Kingdom, Canada, Israel, Australia, United States |
| Crepe | United Kingdom, Canada, Israel, Brazil, United States |
| Crape | Belgium, Israel, Canada, Spain, United States |
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c. sallustius qui. crispus Roman historian and politician (86 BC - c.35 BC), IT (b. 86) |
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| quintus marcius crispus 1st century BC Roman senator and military officer (b. 50) |
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| lucius junius quintus vibius crispus 1st century AD Roman senator and consul (b. 50) |
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| istván crispus Roman Catholic bishop (b. 1450) |
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| gaius sallustius passienus crispus 1st-century CE Roman senator, consul and provincial governor |
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| crispus, crispinianus, and benedicta Roman Christian martyrs |
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