Hello Kitty (Japanese: ハローキティ; Latin: Harōkiti) is a cartoon character created by Japan's Sanrio Company in 1974. Hello Kitty-related products usually appear in the image of a bright pink white cartoon kitten Hello Kitty with a red bow on its left ear. The Hello Kitty trademark, which deliberately ignores the mouth part, has become widely known since it was registered in 1976.

Hello Kitty does not have an official Chinese translation, but names such as Hello Kitty, Hello Kitty, and Hello Kitty can still be found on the market. In addition, because Hello Kitty has no mouth, it is also known as the mouthless cat and the mouthless cat on the Internet.

Hello Kitty was originally designed in 1974 by Sanrio designer Yuko Shimizu. Shimizu left the company about a year later. The second designer, Setsuko Yonekubo, continued to design until 1980 when the task was handed over to Yuko Yamaguchi.

Hello Kitty was given British ancestry because British culture was very popular with Japanese girls at the time. Kitty's name comes from a cat owned by Alice in the book Alice Through the Looking Glass by Lewis Carroll. Dear Daniel, Kitty's boyfriend, who was created in 1999, was inspired by Melody, a 1971 film in which the Bee Gees participated in the songwriting and starring Mark Lester as Daniel.

The fictional world of Hello Kitty includes a host of friends and family members. Since 2004, she also has a pet Persian cat she calls Charmmy Kitty and a pet hamster named Sugar. Charmmy is very similar to Hello Kitty but more like a cat.