Last name Dillworth (Dillworth 
) , throughout the world, is a rare family name. The family name Dillworth is habitual in the United States, where it is a very rare surname, the United Kingdom, and Canada. Much less frequently, Dillworth is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dillworth | Germany, United Kingdom, South Africa, United States, Canada |
| cicely dillworth (1748-1814) (b. 1748) |
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| dillworth crewdson fox (b. 1828) |
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| hiram powers dillworth American musician, US (b. 1878) |
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