Technological singularity — hypothetic future event in which artificial intelligence iteratively redesigns itself to rapidly become more intelligent, causing technological and social change beyond prediction

1983 European Super Cup — tournament

1983 Intercontinental Cup — football match

Eurovision Song Contest 1983 — 28th edition of the Eurovision Song Contest

EuroBasket 1983 — basketball championship

1983 Formula One World Championship — sports season

1983 Cricket World Cup — Cricket World Cup

1983 Copa América — 1983 edition of the Copa América association football competition

North American video game crash of 1983 — 1983 video gaming economic recession

1983–84 UEFA Cup — 13th season of Europe's secondary club football tournament organised by UEFA

1983 FIFA World Youth Championship — International football competition