In the world, Koestler (Koestler , קסטלר ) is an extremely rare male given name. Predominantly, Koestler is the last name as well as the forename.
Köstler, and Коестлер
Koestler is also a name for the fictitious and mythical characters: .
Mr, Seth, Anne, Anja, Aric, Adam, Carl, Clay, Curt, Beth, Sina, Karl, Katy, Kali, Kurt, Kyle, Paul, Ruth, Dale, Gary, Gale, Kate, Sara, Mike, Meta, Ms, Ed, Ann, Amy, Ada, Ben, Bob, Kay, Ken, Kim, Rak, Rob, Ron, Dan, Don, Leo, Jim, Marc, Mary, Mark, Matt, Gail, and Greg
, קסטלר 
) is an extremely rare male given name. Predominantly, Koestler is the last name as well as the forename.