Katt \k(a)-tt\ as a girl's name is a variant of Katie. See for origin and meaning of Katt.

The baby name Katt sounds like Katy, Kati, Kate, Kata, Kat and Kait. Other similar baby names are Kasi, Bat, Bett, Kady, Kadi, Kade, Cait, Kala, Kaly, Kara, Kari, Kacy, Kaci, Kace, Kasy, Kitty, Kit, Kaye, Kay, Katya, Katla, Katka, Katia, Kathy, Kathi, Katha, Katey, Katee, Kass, Kaity, Caty, Cato, Cati, Cath, Cate, Cat, Hatty, Jett, Ka-, Kai, Kaia, Kali, Kama, Kami, Kani, Kary, Kathe, Kaite, Kitti, Kas, Kaya, Lata, Pat, Matti, Mata, Matty, Mat, Nata, Natty, Nat, Patty, Patti, Patte, Sato, Tate, Taitt, Tait and Tati.