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.
The Dominican Republic ( də-MIN-ik-ən; Spanish: República Dominicana, pronounced [reˈpuβlika ðominiˈkana] (listen)) is a country located in the island of Hispaniola, in the Greater Antilles archipelago of the Caribbean region.
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 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.
Dominic Thiem (German pronunciation: [ˈdɔmɪnɪk ˈtiːm]; born 3 September 1993) is an Austrian professional tennis player.
The Domain Name System (DNS) is a hierarchical and decentralized naming system for computers, services, or other resources connected to the Internet or a private network.
Dopamine (DA, a contraction of 3,4-dihydroxyphenethylamine) is an organic chemical of the catecholamine and phenethylamine families.