Oy or OY may refer to:
Arts and entertainment Oy, an animal character in Stephen King's Dark Tower series Oy (album), a studio album of Iranian singer-songwriter Mohsen Namjoo Oy! (film), a 2009 Indian Telugu-language film starring Siddharth Narayan and Shamili
Business Osakeyhtiö, often abbreviated Oy, a type of Finnish limited company
Places Oy, a village in the Oy-Mittelberg municipality, Bavaria, Germany Oy, Russia, a rural locality (selo) in Khangalassky District of the Sakha Republic, Russia County Offaly, Ireland (code OY)
People Edin Øy (born 1997), Norwegian footballer Nils E. Øy (born 1946), Norwegian newspaper editor Jenna von Oÿ (born 1977), American actress and country music singer
Transportation Conair of Scandinavia, former Danish airline (flight code prefix OY-) Omni Air International IATA airline designator "OY" (Oscar Yankee), an aircraft registration code prefix for airplanes from Denmark Bedford OY, a British army lorry introduced in 1939
Language Oy or Oi language, spoken in Laos Oy, a Yiddish exclamation of chagrin, dismay, exasperation or pain, commonly used in the phrase oy vey oy, a digraph found in many languages Oi (interjection), sometimes spelled "oy", a British slang interjection used to get someone's attention Uk (Cyrillic) (Оу оу), an old Cyrillic homoglyph of Oy
Titles Order of Yukon (post-nominal letters)
See also Oi (disambiguation)