Brinkmanship (or brinksmanship) is the practice of trying to achieve an advantageous outcome by pushing dangerous events to the brink of active conflict. The maneuver of pushing a situation with the opponent to the brink succeeds by forcing the opponent to back down and make concessions rather than risk engaging in a conflict that would no longer be beneficial to either side. That might be achieved through diplomatic maneuvers, by creating the impression that one is willing to use extreme methods rather than concede. The tactic occurs in international politics, foreign policy, labor relations, contemporary military strategy (by involving the threat of nuclear weapons), terrorism, and high-stakes litigation.

The term is chiefly associated with John Foster Dulles, US Secretary of State from 1953 to 1956 during the Eisenhower administration. Dulles sought to deter aggression by the Soviet Union by warning that the cost might be massive retaliation against Soviet targets.