Do may refer to:
Donald John Trump (born June 14, 1946) is the 45th and current president of the United States. Before entering politics, he was a businessman and television personality.
Doctor Who is a British science fiction television programme produced by the BBC since 1963. The programme depicts the adventures of a Time Lord called "the Doctor", an extraterrestrial being, to all appearances human, from the planet Gallifrey.
The Dominican Republic (; Spanish: República Dominicana Spanish pronunciation: [reˈpuβliˌka ðoˌminiˈkana] (listen)) is a country located in the island of Hispaniola, in the Greater Antilles archipelago of the Caribbean region.
The domestic dog (Canis lupus familiaris when considered a subspecies of the wolf or Canis familiaris when considered a distinct species) is a member of the genus Canis (canines), which forms part of the wolf-like canids, and is the most widely abundant terrestrial carnivore.
A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin philosophiae doctor or doctor philosophiae) is the highest university degree that is conferred after a course of study by universities in most English-speaking countries.
The Ingenious Gentleman Sir Quixote of La Mancha (Modern Spanish: El Ingenioso Hidalgo Don Quijote de la Mancha, pronounced [el iŋxeˈnjoso iˈðalɣo ðoŋ kiˈxote ðe la ˈmantʃa]), or just Don Quixote (, US: , Spanish: [doŋ kiˈxote] (listen)), is a Spanish novel by Miguel de Cervantes.
The Doolittle Raid, also known as the Tokyo Raid, on Saturday, April 18, 1942, was an air raid by the United States on the Japanese capital Tokyo and other places on the island of Honshu during World War II, the first air operation to strike the Japanese Home Islands.
Dopamine (DA, a contraction of 3,4-dihydroxyphenethylamine) is an organic chemical of the catecholamine and phenethylamine families.