OD or Od may refer to:

Education

* Old Diocesan, a former pupil of Diocesan College *

Old Dunelmian This is a list of notable Old Dunelmians, former students of Durham School at Durham, England. A to E * Sir Carl Douglas Aarvold (1907–1991), Recorder of London, England International rugby player, British and Irish Lions rugby player. * Gar ...

, a former pupil of Durham School

Medicine

* OD or o.d., an abbreviation used in medical prescriptions for or "once daily" both meaning "take once every day" *

Doctor of Optometry Optometry is a specialized health care profession that involves examining the eyes and related structures for defects or abnormalities. Optometrists are health care professionals who typically provide comprehensive primary eye care. In the Uni ...

(O.D.) * , , or , meaning "right eye" in general ophthalmologic or optometric usage, particularly in eyeglass prescriptions * Osteochondritis dissecans, a medical disease affecting the joints of both humans and animals * Overdose, the use of a drug in quantities greater than recommended

Music

Oblivion Dust Oblivion Dust is a Japanese rock music, rock band first active from 1996 to 2001; they reunited in 2007. Although they were originally largely influenced by early 1990s American grunge bands,

, a Japanese rock band *

One Direction One Direction, often shortened to 1D, are an English-Irish pop boy band formed in London in 2010. The group are composed of Niall Horan, Liam Payne, Harry Styles, Louis Tomlinson, and previously Zayn Malik until his departure from the gr ...

, a British/Irish pop music band *

Orphei Drängar Sångsällskapet Orphei Drängar (OD) is a Swedish male voice choir and singing society based in Uppsala, Sweden. While best known for its high quality performances of the classical repertoire, OD sings music of all genres in many different langua ...

, a Swedish male choir * O.D, a song by Sunna from the album ''

One Minute Science ''One Minute Science'' is the debut studio album from the British industrial rock band Sunna. The Album was released on 15 August 2000 in the United States on the Astralwerks label and on 6 November 2000 in the United Kingdom on the Melank ...

'' (2000) * ''

Overly Dedicated ''Overly Dedicated'' (sometimes stylized as ''O(verly) D(edicated)'' and shortened as ''OD'') is the fourth solo mixtape by American rapper Kendrick Lamar, released on September 14, 2010, via Top Dawg Entertainment. The album features guest appea ...

'', a 2010 mixtape by Kendrick Lamar * ''The OD EP'', a 2012 extended play by

Danny Brown Daniel Dewan Sewell (born March 16, 1981), better known by his stage name Danny Brown, is an American rapper, singer, and songwriter. He has been described by MTV as "one of rap's most unique figures in recent memory". In 2010, after amassing s ...

Organizations

* Batik Air Malaysia (IATA airline code OD) * '' Ordnungsdienst'' , a collaborationist organization in Nazi-occupied Poland * Organization development

People and characters

O.D. (musician) O.D. is one of the founders of the industrial/metal/electronic band Velcra Velcra was a Finnish rock band, established 2000. Their music features female vocals (both clean and distorted) on a background of heavily distorted guitars and marchin ...

, a member of Velcra * Super OD, a Ghanaian actor * O.D (''Gatchaman Crowds''), a character in the anime series ''Gatchaman Crowds'' * Ód or Óðr, a Nordic god

Places

Odisha Odisha (English: , ), formerly Orissa ( the official name until 2011), is an Indian state located in Eastern India. It is the 8th largest state by area, and the 11th largest by population. The state has the third largest population of ...

, India *

Stormarn (district) Stormarn () is a district in Schleswig-Holstein, Germany. It is bounded by (from the north and clockwise) the districts of Segeberg and Ostholstein, the city of Lübeck, the district of Lauenburg, and the city-state of Hamburg. History In mediev ...

, Germany (vehicle plate code OD)

Science and technology

Optical density Absorbance is defined as "the logarithm of the ratio of incident to transmitted radiant power through a sample (excluding the effects on cell walls)". Alternatively, for samples which scatter light, absorbance may be defined as "the negative lo ...

Outside diameter This page lists the standard US nomenclature used in the description of mechanical gear construction and function, together with definitions of the terms. The terminology was established by the American Gear Manufacturers Association (AGMA), under ...

(also: ''O.D.''), cylinder or pipe external diameter *

Ordnance datum In the British Isles, an ordnance datum or OD is a vertical datum used by an ordnance survey as the basis for deriving altitudes on maps. A spot height may be expressed as AOD for "above ordnance datum". Usually mean sea level (MSL) is used fo ...

, in Britain, an Ordnance Survey data point * od (Unix), a Unix program * Object Desktop, a suite of skinning and customization programs by Stardock, or ''ObjectDock'', another program by the same company *

Optical disc In computing and optical disc recording technologies, an optical disc (OD) is a flat, usually circular disc that encodes binary data (bits) in the form of pits and lands on a special material, often aluminum, on one of its flat surfaces. ...

* Organization development, the study of organizational change and performance * Ordinal definable set, a set requiring only finitely-many ordinals to define under first-order logic.

Other uses

* Od language, an Indo-Aryan language of Pakistan * Odic force or Od, a life force * '' Occupation Double'', a Quebec reality show that started in 2003 * Official Declaration, part of Latter-day Saint scripture *

Olive drab Olive is a dark yellowish-green color, like that of unripe or green olives. As a color word in the English language, it appears in late Middle English. Shaded toward gray, it becomes olive drab. Variations Olivine Olivine is the typical ...

, a color, particularly of some United States Army uniforms *

Online dating Online dating, also known as Internet dating, Virtual dating, or Mobile app dating, is a relatively recent method used by people with a goal of searching for and interacting with potential romantic or sexual partners, via the internet. An onlin ...

* Original dance, the second part of an ice dancing competition * Order of Distinction, a civil honour of Jamaica * OD - original designation in

Taxonomy Taxonomy is the practice and science of categorization or classification. A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. ...