Do, DO or D.O. may refer to:

Look up do, Do, do-, or .do in Wiktionary, the free dictionary.

• The English verb, do, which may serve as an auxiliary verb; see do-support
• Do (kana), a mora symbol in Japanese writing
• Ditto mark

• Đỗ, a Vietnamese surname
• Do (surname), includes people with the surname
• D.O. (entertainer) (born 1993), South Korean singer and actor
• D.O. (rapper), Canadian rapper
• Do (singer) (born 1981), Dutch singer
• Marshall Applewhite (1931–1997), American cult leader

• The Dø, a French/Finnish indie pop band
• Do (Do album), an album by Dutch singer Do
• Do (Psychostick album)
• C (musical note), the first note of the musical scale in fixed do solfège
• Delta Omicron, an international music fraternity
• Do, the first syllable of the scale in solfège
• Do, a type of buk (drum) used in Korean ritual music
• "Do", a song by the White Stripes from the 1999 album The White Stripes (album)

• The DO, an online magazine published by the American Osteopathic Association
• Dansgaard–Oeschger event, in climate science
• Delta Omega, an American public health honorary society
• Doctor of Osteopathic Medicine
• Dissolved oxygen

• .do, the country code top level domain for the Dominican Republic
• Dornier Flugzeugwerke, a defunct German aircraft manufacturer
• GNOME Do, an application launcher for Linux
• Dō, the torso protection in a suit of kendo armor

• Do (province), the Korean and Japanese administrative division equivalent to the ancient Chinese dao
• Do (administrative division), an administrative unit in both North and South Korea
• Do (Berkovići), Bosnia and Herzegovina
• Do (Hadžići), Bosnia and Herzegovina
• Do, Stolac, Bosnia and Herzegovina
• Do (Trebinje), Bosnia and Herzegovina
• Do, Ivory Coast
• Dominican Republic

• DO (film)
• Dō (philosophy), a doctrine or lifestyle in Japanese and Korean cultures
• Delivery order
• Denominación de origen, a Spanish wine appellation
• Directorate of Operations (CIA) of the United States Central Intelligence Agency
• Dominicana de Aviación, a defunct Dominican airline
• Do, the number twelve in the duodecimal system

• D0 (disambiguation) (D followed by zero)
• Doe (disambiguation)
• Doo (disambiguation)
• Doh (disambiguation)

This disambiguation page lists articles associated with the title Do.
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