Family name Karsner (Karsner 
) , all around the world, is a rare surname. The last name Karsner is habitual in Denmark, where it is a very rare surname, the United States, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
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| Karsner | United Kingdom, Denmark, United States, Canada |
| howard thomas karsner Howard T. Karsner, M.D.; Professor of Pathology, Director of the Institute of Pathology, Western Reserve Univ. and Univ. Hospitals of Cleveland, US (b. 1879) |
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| david karsner American journalist, US (b. 1889) |
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| andy karsner American technology entrepreneur, venture capitalist, and energy and environmental policymaker., US (b. 1967) |
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Mr, Lucy, Josh, John, Jenn, Troy, Tina, Nate, Eric, Fred, Maria, Margo, Sarah, Susan, Sonja, Steve, Scott, Alana, Carol, Cacee, Cobie, Clara, Lisa, Brian, Greg, Dahn, Mat, Sue, Ann, Bob, Kum, Don, Lee, Jan, Joe, Mary, Mark, Mike, Alan, Andy, Anna, Adam, Chad, Beth, Brad, Rick, Ryan, Gene, and Bryan