Family name Grenner (Grenner 
) , around the world, is a rare cognomen. The cognomen Grenner is characteristic of Germany, where it is a rare surname, Finland, and Switzerland. Not in comparison with a country's population, it most frequently occurs in Germany, the United States, and Finland. Much less frequently, Grenner is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Grenner | Germany, Sweden, Finland, Switzerland, United States |
| stig-olof grenner Finnish swimmer (1939-2008), FI (b. 1939) |
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| emily grenner researcher (ORCID 0000-0002-6818-1093) |
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| karl heinz grenner DE |
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Mr, Katja, Kelly, Kevin, Klaus, Peter, Pilar, Devyn, Danny, Daisy, Guido, Laura, Lauri, Larry, Linda, Lorie, Janay, Josef, Helga, Heinz, Irene, Maikel, Betty, Monika, Cajsa, Sally, Ms, Kim, Ola, Mary, Mats, Anne, Anja, Chad, Robb, Rudi, Dawn, Gary, Gerd, Lars, Lois, Josh, John, Jodi, Timo, Neil, Megan, Chris, and Moritz