Arborea is a town and comune in the province of Oristano, Sardinia, Italy.

Arborea may also refer to:

• Giudicato of Arborea, an historical state in Sardinia
• Arborea, a village in George Enescu Commune, Botoşani County, Romania
• Arborea (Dungeons & Dragons), a fictional place in the Dungeons & Dragons role-playing game
• The Exiled Realm of Arborea, the titular setting of the MMORPG TERA
• Arborea (band), an American psych folk/indie-rock folk duo
• Arborea (genus), a synonym for Charniodiscus, an Ediacaran fossil
• Ulmus pumila var. arborea, the Turkestan elm, a tree endemic to western Siberia and Turkestan

• Stationary bicycle
• Stationary bike
• Stationary distribution
• Stationary engine
• Stationary engines
• Stationary front
• Stationary phase
• Stationary phase approximation
• Stationary phase method
• Stationary point
• Stationary process
• Stationary set
• Stationary spacetime
• Stationary steam engine
• Stationary stochastic process
• Stationary value
• Stationary wave
• Stationary wavelet transform
• Station (Australian agriculture)
• Station car
• Station Casinos
• Station des forces canadiennes
• Station Diary
• Stationers' and Newspaper Makers' Company
• Stationers' Company