In securities and commodities trading, a rising market. A bull is an investor who expects prices to rise and, on this assumption, buys a security or commodity in hopes of reselling it later for a profit. A bullish market is one in which prices are expected to rise. Seealso bear market.

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A Bull is an adult male of various large mammal species including elk, moose, bovines (especially cattle), elephants, whales, seals, and sea lions.

Bull may also refer to:

• A man who has sex with a woman in another relationship, thus making the other man a cuckold; see affair
• The senior most Ensign (rank) in a United States Navy command; also called the "Bull Ensign"
• Ceradyne Bull, a military vehicle
• Papal bull, a solemn decree from the Pope
• Bull of the Crusade, a religious document given as a type of indulgence
• Bull (mythology), worship of the Sacred Bull (also known as Taurus) throughout the ancient world
• Bull market, an economic trend
• Irish bull, a ludicrous, incongruent or logically absurd statement
• Bull (TV series), an original show on the TNT Network
• "Bull" (CSI), an 8th season episode of CSI: Crime Scene Investigation
• A member of a railroad police force
• USS Bull, two U.S. Navy ships
• Tupolev Tu-4, a Soviet bomber aircraft given the NATO reporting name "Bull"
• Groupe Bull, a French computer company
• Bull!, a short-lived BBC radio show

Bull is the name of:

• Amos Bad Heart Bull, Oglala Lakota artist and historian
• Bull, a character in Lassie (manga)
• Dixie Bull, English sea captain and pirate
• John Bull (disambiguation)
• John Bull (composer), English composer, musician, and organ builder.
• Ole Bull, Norwegian violinist
• Olaf Bull, Norwegian poet
• Fredrik Rosing Bull, Norwegian engineer
• Gerald Bull, engineer who developed long range artillery
• Hedley Bull, political scientist and major contributor to the English School of international relations
• Sitting Bull, Hunkpapa Sioux medicine man and leader
• White Bull, Sioux leader
• Bull Shannon, a character played by Richard Moll on the television program Night Court
• Bull Buchanan, ring name of professional wrestler Barry Buchanan

See also

• Bull polishing, a method for polishing leather
• Golden Bull, a decree of medieval and Byzantine monarchs
• Bullsquid, a fictional creature in the PC game Half-Life
• Bullfighting, a tradition involving professional performers
• Bullshit, a common English expletive
• Short Bull