A tuber is a type of modified plant structure that is enlarged to store nutrients.

Tuber may also refer to:

• Tuber (fungus), a genus of fungi that includes truffles
• Tuber (band), a stoner rock band from Greece
• Tuber (album), a 1993 album by Bivouac
• A form of tumor exhibited in tuberous sclerosis
• Tuber Hill in Canadian Cascade Arc
• Tuber (app) (Tuber浏览器), a discontinued browser app developed by Shanghai Fengxuan Information Technology
• YouTuber

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