Cognomen Sparnaay (Sparnaay 
) , around the globe, is a rare family name. The cognomen Sparnaay is habitual in Netherlands, where it is a rare surname, New Zealand, where it is a very rare surname, and Israel. Measured by absolute frequency, it is the most numerous in Netherlands, Canada, and Israel.
| VARIANT | COUNTRY |
|---|---|
| Sparnaay | Canada, Israel, New Zealand, Netherlands |
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marcus johannes sparnaay Dutch physicist and university professor (1923-2015), NL (b. 1923) |
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| hendrik sparnaay Dutch university teacher, NL (b. 1891) |
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harry sparnaay Dutch musician (1944-2017), NL (b. 1944) |
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tjalf sparnaay Dutch painter, NL (b. 1954) |
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