Last name Clock (Krak 
, Clock 
, Kilok 
) , worldwide, is quite a rare cognomen. The family name Clock is habitual in Suriname, where it is quite a common surname, Serbia, where it is quite a rare surname, and Slovakia. In absolute terms, it is commonest in the United States, Myanmar, and Indonesia. Much less frequently, Clock is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Krak | United States, Indonesia, Poland, Serbia, Myanmar |
| Clock | United States, Indonesia, Taiwan, Myanmar, Brazil |
| Kilok | India, Malaysia, United States, Indonesia, Brazil |
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cornelis cornelisz. clock painter (c.1561-1629), NL (b. 1561) |
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| feike alles clock NL (b. 1604) |
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| sara clock 1651 - 1731 (b. 1651) |
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| herbert clock US author (1890-1979), US (b. 1890) |
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| victor clock Norwegian ski jumper (1918-2006) (b. 1918) |
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| michael clyde clock Ed.D. Oklahoma State University 1967 |
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| nick clock college basketball player (1959–1959) Idaho State |
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| dj clock South African DJ and record producer, ZA (b. 1988) |
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