The Companionship of the Cat and the Mouse  (German: Katze und Maus in Gesellschaft) is a tale written by the Brothers Grimm.

A shorter version of the tale was included in the Brothers Grimm's manuscript collection of 1808, and published in the first edition of Kinder- und Hausmärchen in 1812. Their version is based upon an oral tradition communicated by Gretchen Wild (1787–1819) in Kassel.[2]