January 1, 1977
1977 in music — overview of music-related events during the year of 1977
1977 FIFA World Youth Championship — international football competition
1977 European Super Cup — tournament
1977 Summer Universiade — multi-sport event in Sofia, Bulgaria
Eurovision Song Contest 1977 — 22nd Edition of Eurovision Song Contest
1977–78 UEFA Cup — 7th season of Europe's secondary club football tournament organised by UEFA
1977 CONCACAF Championship — 1977 edition of the CONCACAF Championship association football competition
EuroBasket 1977 — 1977 edition of the FIBA EuroBasket
1977 Formula One season — sports season
1977 amendment protocol to the Geneva Conventions