Reasoner (disambiguation)

A reasoner is a piece of software able to infer logical consequences from a set of asserted facts or axioms.

Reasoner may also refer to:
 * 20474 Reasoner, a main-belt asteroid
 * New Reasoner, a political magazine
 * Reasoners Run, a stream in Ohio, U.S.
 * Solver, software that solves a family of mathematical problems by inferring consequences from logical rules
 * USS Reasoner (FF-1063), a Knox class frigate

People with the surname

 * Elsie Reasoner Ralph (1878–1913), first American female war correspondent
 * Frank S. Reasoner (1937–1965), United States Marine Corps officer
 * Harry Reasoner (1923–1991), American journalist
 * James Reasoner (21st century), American novelist
 * Marty Reasoner (born 1977), American ice hockey player
 * Mike Reasoner (21st century), American politician