Kaat is a given name. Notable people with the name include:
Kaat Dumarey (born 1999), Belgian acrobatic gymnast Kaat Hannes (born 1991), Belgian road cyclist Kaat Tilley (1959–2012), Belgian fashion designer Kaat Van Daele (born 1989), Belgian figure skater Kaat Van der Meulen (born 1995), Belgian racing cyclist