{{wiktionary|OH|oh}}
'''Oh''', '''OH''', or '''Oh!''' is an interjection, often proclaiming surprise, understanding or disappointment. It may refer to: {{TOC right}}
==Arts and entertainment== ===Music=== ====Albums==== * ''Oh!'' (Girls' Generation album), 2010 * ''Oh!'' (ScoLoHoFo album), 2003 * ''OH (ohio)'', by Lambchop, 2008 * ''Oh!'', an EP that came with the preorders of ''Oh! Gravity.'' by Switchfoot, 2006
====Songs==== * "O (Oh!)", 1920 by Ted Lewis, 1953 by Pee Wee Hunt * "Oh" (Ciara song), 2005 * "Oh!" (Girls' Generation song), 2010 * "Oh!" (The Linda Lindas song), 2021 * "Oh!" (Pink Lady song), 1981 * "Oh" (Stray Kids song), 2021 * "Oh!", by Boys Noize from ''Oi Oi Oi'' * "Oh!", by The Breeders from ''Pod'' * "Oh", by Dave Matthews from ''Some Devil'' * "Oh", by Fugazi from ''The Argument'' * "Oh", by Juliana Hatfield from ''Made in China'' * "Oh!", by Micky Green from ''White T-Shirt'' * "Oh!", by Sleater-Kinney from ''One Beat'' * "Oh", by Spratleys Japs from ''Pony'' * "Oh!", by The Trudy * "Oh," by Underworld, recorded for the soundtrack to A Life Less Ordinary, 1997
===Other media=== * Oh! (TV channel), an Australian cable TV channel owned by Optus Television * Oxygen, an American TV channel formerly called "Oh!" * Oh, an alien and the main protagonist from the DreamWorks animated film ''Home'' * Oh, I See, an Indonesian news magazine on Nusantara TV
==People== * Oh (surname), Korean surname romanized as "Oh" or "O" * Oh (Japanese surname), Japanese surname derived from Wang(王) * Ou (surname), Chinese and Cantonese surnames pronounced as "Oh" or "O" * Dennis Oh, Korean actor * Nadia Oh, English vocalist
==Science and technology== ===Chemistry=== * OH, the hydroxy functional group * OH<sup>−</sup>, hydroxide anion * <sup>•</sup>OH, hydroxyl radical * OH, the alcohol class of compounds, that possess a hydroxy functional group
===Other uses in science and technology=== * OH, prefix of hominid fossils found at Olduvai Gorge * OH, designation in the Unified Soil Classification System for organic-rich clay or silt of high plasticity * O<sub>h</sub>, the point group of octahedral molecular geometry * Ohnesorge number, a dimensionless number that relates the viscous forces to inertial and surface tension forces
==Transportation== * OH, registration prefix for aircraft registered in Finland * Comair (United States) (1977–2012, IATA airline code OH) * PSA Airlines (1979–present, IATA airline code OH since 2012) * Observation helicopter, in military abbreviation
==Other uses== * Ohio, US (postal abbreviation) * O.H., post-nominal letters for the Brothers Hospitallers of Saint John of God * ''OH'', an abbreviation for the ''Orphic Hymns'' * OpenHarmony
==See also== * 0H (disambiguation) (zero H) * H0 (disambiguation)
{{disambiguation}}