• Arabic: ,
• Czech: společník
• Dutch: metgezel
• Finnish: toveri
• Galician: compañeiro
• German: Gefährte , Gefährtin , Kompagnon
• Hungarian: társ
• Kurdish: ,
• Novial: kompane
• Old English: ġesīþ, ġefēra
• Polish: towarzysz , towarzyszka , kompan
• Romanian: tovarăş
• Slovene: tovariš (1), spremljevalec (2)
• Spanish: compañero

Companion may refer to:

• Companion animal, a pet animal kept for companionship
• Companion parrot, a pet parrot that interacts with its owner
• Companion weapon, an object held in the non-sword hand while fencing
• Companion star, a star in a binary star system
• Muhammad's companions, the Sahaba
• Companion cavalry, Alexander the Great's elite cavalry
• Foot Companion, the primary type of soldier in Alexander the Great's army
• Lady's companion, a genteel woman who acted as a companion for woman of rank or wealth
• Companion planting, planting of different crops in close physical proximity
• A handbook or guide book or compendium e.g. Star Trek: Deep Space Nine Companion or The Oxford Companion to Music
• A member of a Holy Royal Arch chapter

In fiction:

• Companion (Doctor Who), a character who travels with the Doctor in the TV series Doctor Who
• Companion (Firefly), a type of courtesan and entertainer in the TV series Firefly
• The Companions or Heroes of the Lance, a group of heroes in the fictional Dragonlance world
• Companion (manga), an ongoing manga series published in Kodansha's Magazine Z

In music:

• Companion (Patricia Barber album), a (1999) album by Patricia Barber

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