Around the world, Koschak (Koschak 
) is an extremely rare unknown gender first name. Much more prevalently, Koschak is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Koschak | Germany, Austria, Australia, United States, Brazil |
Mr, Lori, Lynn, Jane, Josh, John, Joan, Jody, Jeff, Jyni, Tara, Toby, Troy, Zach, Maria, Megan, Shari, Susan, Steve, Stacy, Scott, Alice, Lisa, Leah, Greg, Dawn, Ms, Amy, Kim, Ray, Joe, Ivo, Mary, Matt, Mike, Seth, Abbie, Andy, Anne, Cody, Beth, Brad, Bill, Karl, Kate, Rick, Ryan, Dave, Anna, and Agnes