Britain's Olympic and Paralympic athletes will stage a parade in Manchester and a celebration in London to celebrate their success at the Rio 2016 Games.
Full details of the two-day celebration have yet to be announced, but it will take place on October 17 and October 18.
Britain confirmed its place as a sporting powerhouse by coming second in both the Olympic and Paralympic medal tables.
Britain's Olympic athletes won 27 golds from 15 sports, and 67 medals in total, smashing UK Sport's pre-Games target of at least 48 medals, meaning Rio was the nation's most successful "away" Games.
ParalympicsGB won 64 golds, the most by a British team since 1988, and a total of 147 medals.
Team GB's chef de mission Mark England said: "This will be a very proud moment for all Team GB and ParalympicsGB athletes and rich reward for such fantastic efforts at the recent Games in Rio."
While Penny Briscoe, chef de mission of ParalympicsGB, added the team delivered "an amazing, awe-inspiring performance".
"We believe that the performances of our athletes help to inspire a better world for disabled people."
British Cycling, taekwondo and the ParalympicsGB swimming team are all based in Manchester, making it "the ideal place to hold a national parade", according to Manchester City Council deputy leader Sue Murphy.