Family name Hennock (Hennock 
) , in the entire world, is a very rare surname. The last name Hennock is characteristic of Australia, where it is a rare surname, the United Kingdom, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Hennock is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hennock | Brazil, New Zealand, Australia, United States, United Kingdom |
| frieda b. hennock Lawyer and government official; b. Frieda Barkin Hennock in Poland, 1904; married William H. Simon, 1954; d. 1960, US (b. 1904) |
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| ernest p. hennock (b. 1926) |
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