The term CLU can refer to:
Club Penguin is a massively multiplayer online game (MMO) involving a virtual world containing a range of online games and activities, created by New Horizon Interactive (now known as Disney Canada Inc.).
Cluedo (/ˈkluːdoʊ/)—known as Clue in North America—is a murder mystery game for three to six players, devised by Anthony E.
Cluj-Napoca (Romanian pronunciation: [ˈkluʒ naˈpoka]), commonly known as Cluj, is the second most populous city in Romania, after the national capital Bucharest, and the seat of Cluj County in the northwestern part of the country.
Club de Fútbol América S.A. de C.V., commonly known as Club América, or simply as América, is a professional football club based in Mexico City, Mexico.
Cluster headache (CH) is a neurological disorder characterized by recurrent, severe headaches on one side of the head, typically around the eye.
A cluster munition is a form of air-dropped or ground-launched explosive weapon that releases or ejects smaller submunitions.
Clube de Regatas do Flamengo (English: Flamengo Rowing Club), commonly referred to as Flamengo (Portuguese pronunciation: [flɐˈmẽɡu]), is a Brazilian sports club based in Rio de Janeiro.
Cluster analysis or clustering is the task of grouping a set of objects in such a way that objects in the same group (called a cluster) are more similar (in some sense or another) to each other than to those in other groups (clusters).
Clube Atlético Mineiro (Brazilian Portuguese: [ˈklubi atˈlɛtʃiku miˈnejɾu]), commonly known as Atlético Mineiro or Atlético, and colloquially as Galo (pronounced: [ˈgalu], "Rooster"), is a professional football club based in Belo Horizonte, Minas Gerais, Brazil.