| 13 May - 16 May | Orienteering World Cup Round 1 with European Orienteering Championships 2021 |  Switzerland | Europe | F | Regional Championships
World Cup | | |  |
| 3 Jul - 9 Jul | Nokian Tyres World Orienteering Championships 2021 |  Czechia | Europe | F | World Championships | | | |
| 7 Aug - 13 Aug | World Masters Orienteering Championships 2021 |  Hungary | Europe | F | World Masters | | | |
| 12 Aug - 15 Aug | Orienteering World Cup Round 2 |  Sweden | Europe | F | World Cup
World Ranking Event | | | |
| 19 Aug - 22 Aug | European Youth Orienteering Championships 2021 |  Lithuania | Europe | F | Regional Championships | | | |
| 5 Sep - 10 Sep | Junior World Orienteering Championships 2021 |  Turkiye | Europe | F | Junior World Championships | | | |
| 30 Sep - 3 Oct | Orienteering World Cup Round 3 - Final |  Italy | Europe | F | World Cup | | | |
