1975 treaty between Spain, Morocco, and Mauritania to end Spanish presence in the Sahara

Constitution of Greece — fundamental law of Greece, in effect since 1974

1975 Cricket World Cup — 1975 World Cup in England

Section of the Big Island of Hawaii

1975–76 European Cup — 21st season of the UEFA club football tournament

EuroBasket 1975 — 1975 edition of the FIBA EuroBasket

1975 Formula One season — sports season

1975 Copa América — 1975 edition of the Copa América association football competition

Eurovision Song Contest 1975 — 20th edition of the Eurovision Song Contest

1975–76 UEFA Cup — 5th season of Europe's secondary club football tournament organised by UEFA

1975 World Women's Handball Championship — 1975 edition of the World Women's Handball Championship