Family name Fansler (Fansler 
) , worldwide, is quite a rare cognomen. The cognomen Fansler is habitual in the United States, where it is a rare surname, Canada, where it is a very rare surname, and New Zealand. Measured by absolute frequency, it is commonest in the United States, Canada, and Australia.
| VARIANT | COUNTRY |
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| Fansler | Australia, Canada, Philippines, United States, United Kingdom |
| michael fansler American judge (b. 1883) |
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| dean spruill fansler American professor at Columbia University and Filipino folklorist (b. 1885) |
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| stan fansler American baseball player, US (b. 1965) |
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| sarah j fansler researcher, ORCID id # 0000-0003-4190-907X |
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| mike fansler college basketball player (1947–1948) Harvard |
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| zach fansler American politician, US |
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