Merger Treaty — treaty merging the institutions of the ECSC, EEC, and Euratom into the European Communities

Battle of the Vietnam War in 1965

1965 South African Grand Prix — Formula One motor race held in 1965

1965 first major offensive action conducted by a U.S. military unit during the Vietnam War

1965 Summer Universiade — university sporting event

1965 African Cup of Nations — football tournament

1965 World Women's Handball Championship — 1965 edition of the World Women's Handball Championship

EuroBasket 1965 — 1965 edition of the Eurobasket

1965 Formula One season — sports season

1965 CONCACAF Championship — 1965 edition of the CONCACAF Championship association football competition

Battle of Ba Gia was Phase 1 of Campaign Ba Gia last from May 28 to July 20 1965