Family name Effler (Effler 
) , globally, is quite a rare surname. The last name Effler is habitual in Germany, where it is a rare surname, the United States, and Austria. Measured by absolute frequency, the name is most common in the United States, Germany, and Romania. Much less frequently, Effler is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Effler | Canada, Romania, Argentina, Germany, United States |
| johann effler (b. 1634) |
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| johann friedrich heinrich effler DE (b. 1772) |
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| stephen effler (b. 1860) |
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| louis effler American writer (1888-1978), US (b. 1888) |
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| a. effler researcher, ORCID iD = 0000-0001-8242-3944 |
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| paul v effler researcher |
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| janet c. effler Ph.D. The Johns Hopkins University 2008 |
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| jan georg effler |
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