Stentor is a figure from Greek mythology.

Stentor can also refer to:

• Stentor Alliance, alliance of telecommunications companies in Canada
• Stentor, genus of large, unicellular, ciliate protozoa

• 2146 Stentor, an asteroid

• Armstrong Siddeley Stentor, liquid-fuelled rocket engine used in the Blue Steel missile

• Les Stentors, a French vocal music group

Others

• The Stentor, student-run newspaper at Lake Forest College

• a newsreader for the 19th century Austro-Hungarian Telefon Hírmondó (telephone news service), who would need a loud voice to communicate over unamplified signals.
• Stentor, a PACS in the US Health industry.
• Stentor has also been used in organs for a type of very loud flue stop, and for a department of such stops as in the "Stentor Division" in the Wanamaker Organ.