Last name Nickolls (Nickolls 
) , globally, is a rare surname. The cognomen Nickolls is habitual in Australia, where it is a rare surname, the United Kingdom, and New Zealand. Measured by absolute frequency, it is the most numerous in the United Kingdom, Australia, and the United States.
| VARIANT | COUNTRY |
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| Nickolls | Australia, Canada, New Zealand, United Kingdom, United States |
| elizabeth nickolls (born 1660) (b. 1660) |
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| john nickolls British collector and antiquarian (b. 1710) |
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| joseph nickolls English painter (b. 1713) |
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| trevor nickolls South Australian Aboriginal painter (1949-2012), AU (b. 1949) |
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| alec r nickolls researcher ORCID ID = 0000-0002-7399-4304 |
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| charles l. nickolls Ph.D. |
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| john richard nickolls Ph.D. Stanford University 1977 |
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| deborah nickolls (b. 1976) |
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