Cognomen Winlock (Winlock 
) , in the entire world, is a rare surname. The surname Winlock is habitual in South Africa, where it is a rare surname, the United States, where it is a very rare surname, and New Zealand. Measured by absolute frequency, the name is most common in the United States, South Africa, and Canada. Much less frequently, Winlock is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Winlock | South Africa, Canada, New Zealand, United Kingdom, United States |
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joseph winlock American astronomer, US (b. 1826) |
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winlock w. steiwer American politician, US (b. 1852) |
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| anna winlock American astronomer, US (b. 1857) |
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| william crawford winlock (b. 1859) |
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| winlock william miller son of William Winlock Miller; member of the University of Washington Board of Regents, 1914-1926 and 1933-1957, US (b. 1870) |
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| herbert winlock American egyptologist, museum director (1884-1950), US (b. 1884) |
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| shanel winlock |
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| shanell winlock |
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Ben, Steve, Staci, Scott, Chris, Clara, Bobby, Kelly, Patsy, Paula, Reeva, Diane, Doris, Laura, Linda, Louis, Tania, Tanya, Terri, Tracy, Traci, Trent, Sonia, Treva, Simon, Sarah, Kia, Mark, Mike, Scot, Alma, Phil, Rose, Rich, Ruth, Ryan, Dana, Drew, Lisa, John, Jere, Judy, Tara, Tony, Tess, Eric, Minor, Sadie, and Emily