肯尼迪回合指关贸总协定于1964年5月至1967年6月在瑞士日内瓦举行的第六轮多边贸易谈判，时任美国总统约翰·肯尼迪根据1962年美国《贸易拓展法》提议召开此轮谈判，因此称作“肯尼迪回合”。

肯尼迪回合是1973年之前关贸总协定历次谈判中最广泛、最复杂的一次，占世界贸易总额约75%的54个国家参加。

此次谈判首次涉及了非关税壁垒，关贸总协定第六条虽然规定了反倾销和反补贴税的定义、征收这两类税种的要件和幅度，但各贸易国为保护本国产业，滥用总协定第六条的情况时常发生。

肯尼迪回合制定了世界贸易史上第一个反倾销协议，即总协定第六条的实施细则。美、英、日等21个贸易国签署了该协议，该协议于1968年7月1日生效。

The Kennedy Round was the sixth session of General Agreement on Tariffs and Trade (GATT) trade negotiations held between 1964 and 1967 in Geneva, Switzerland. Congressional passage of the U.S. Trade Expansion Act in 1962 authorized the White House to conduct mutual tariff negotiations, ultimately leading to the Kennedy Round. Participation greatly increased over previous rounds. Sixty-six nations, representing 80% of world trade, attended the official opening on May 4, 1964, at the Palais des Nations. Despite several disagreements over details, the director general announced the round’s success on May 15, 1967, and the final agreement was signed on June 30, 1967—the very last day permitted under the Trade Expansion Act. The round was named after U.S. President John F. Kennedy, who was assassinated six months before the opening negotiations.