Cognomen Cascajo (Cascajo 
) , worldwide, is a rare family name. The surname Cascajo is habitual in Philippines, where it is a rare surname, Portugal, and Spain. Also, Cascajo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cascajo | Portugal, Spain, Philippines, Australia, Argentina |
| ciriaco cascajo Spanish military personnel, ES (b. 1878) |
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| josé luis cascajo castro ES (b. 1947) |
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| jaime rodríguez-sacristán cascajo ES (b. 1964) |
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| raúl cascajo researcher |
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| maria v cascajo researcher |
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