In all the world, Gryschuk (Gryschuk , Грисчук ) is an extremely rare unknown gender forename. Much more frequently, Gryschuk is the last name as well as the forename.
Грыщук
Ken, Alexandra, Victoria, Nicholas, Alexandr, Larissa, Richard, Pauline, Bridget, Laurie, Gerald, Millie, Wayne, Laura, Kelly, Bruce, Sindy, Todd, Judi, Josh, Lisa, Kori, Carl, Mike, Alexander, and Valentyna
, Грисчук 
) is an extremely rare unknown gender forename. Much more frequently, Gryschuk is the last name as well as the forename.