All around the world, Kuyken (Kuyken 
) is an extremely rare unknown gender first name. Much more prevalently, Kuyken is the last name as well as the forename.
Mr, Susan, Scott, Chris, Cathy, Brian, Peter, P J M, Randy, Robin, Debra, David, Liese, James, Tyler, Nelli, Henri, Frank, Willy, Marjan, Sarah, Maddy, Mandi, Hedi, Ms, An, Amy, Rob, Luc, Jan, J J, Tom, Ton, Morgan, Zoe, Bart, Paul, Dave, Dirk, John, Jeff, Tony, Eric, Hans, Mike, and Sandra