2027 (MMXXVII) will be a common year starting on Friday of the Gregorian calendar, the 2027th year of the Common Era (CE) and Anno Domini (AD) designations, the 27th year of the 3rd millennium and the 21st century, and the 8th year of the 2020s decade.

• May – The 2027 Eurovision Song Contest is scheduled; the location is typically determined by the previous year's winner.
• May 15–August 15 – Expo 2027 is scheduled to be held in Belgrade, Serbia.^[1]
• June – Istanbul, Turkey, will host the 2027 European Games.^[2]
• June 24–July 25 – The 2027 FIFA Women's World Cup is scheduled to be held in Brazil.
• August 10 – The 2027 Kenyan general election will be held. Incumbent president William Ruto will be eligible for reelection.
• August 22 – If not triggered earlier, the next Spanish general election will occur no later than this date.
• August 27–September 12 – The 2027 FIBA Basketball World Cup is scheduled to be held in Qatar.^[3]
• October 1–November 13 – The 2027 Rugby World Cup will take place in Australia.
• November 7 – If not triggered earlier, the next Polish parliamentary election will occur no later than this date.
• December 22 – If not triggered earlier, the next Italian general election will occur no later than this date.

• Mid-2027 – Artemis III, the second crewed mission and first lunar landing on the Moon since 1972 and the third mission of the Artemis Program, is scheduled to launch no earlier than that time.
• The autonomous region of Bougainville in Papua New Guinea will gain independence per an agreement made in 2021.^[4]
• The upcoming World Youth Day, announced by Pope Francis at the concluding mass held in Lisbon during the WYD 2023 in Portugal, will be held in South Korea.
• The 2027 Cricket World Cup will take place in South Africa, Zimbabwe and Namibia.
• The next Maltese general election must take place by this year.
• The next Thai general election must take place by this year.
• The first Olympic Esports Games will be held in Riyadh in 2027.^[5]