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Family name Duffing (Duffing ) , throughout the world, is a rare cognomen. The surname Duffing is characteristic of France, where it is a rare surname, Germany, where it is a very rare surname, and the United States.
VARIANT | COUNTRY |
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Duffing | Germany, United Kingdom, France, China, United States |
Mr, Tracy, Nancy, Wendy, Samuel, Sharon, Sharen, Shauna, Summer, Alfons, Amanda, Ashley, Claude, Robert, Gerald, George, Joanne, Jeanne, Tanner, Harvey, Helmut, Heiner, Julie, Jerry, Jesse, Jason, Ms, Amy, Rae, Marc, Mark, Chad, Cory, Kent, Ryan, Dean, Ulrike, Lori, John, Joos, Welf, Maria, Mandy, Misty, Shawn, Susan, Donna, Lewis, Lucy, and Mareike