M.Chat (also known as Monsieur Chat and Mr. Chat) is the name of a graffiti cat that originally appeared in Orléans, France in 1997.
It is a kind of graffiti art. The artist was originally anonymous, but in 2007 Thoma Vuille was caught in the act of creating the cat. The graffiti appeared most frequently on chimneys but was also sighted in other places, such as train platforms and at political rallies. This graffiti cat began in France and it spread to Europe, the USA, Vietnam, and Korea as graffiti art.