Family name Deidrick (Deidrick 
) , throughout the world, is a rare cognomen. The surname Deidrick is characteristic of Jamaica, where it is quite a rare surname, the United States, where it is a very rare surname, and the United Kingdom. Much less frequently, Deidrick is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Deidrick | United Kingdom, South Africa, United States, Canada, Jamaica |
| gary deidrick college basketball player (1973–1975) Xavier |
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| william deidrick American inventor, US |
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| _ deidrick college basketball player (1976–1976) Xavier |
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| casey deidrick actor, US (b. 1987) |
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