The biggest event on the calendar puts hockey centre stage at the greatest sporting event there is and 12 men's and 12 women's teams will battle it out for gold and glory at the Oi Seaside Park in Tokyo.
Here's everything you need to know:
Olympic Hockey Qualification
So who's qualified for the Tokyo 2020 Olympics?
Japan (Hosts, 2018 Asian Games champions)
Argentina (2019 Pan-American Games champions)
South Africa (2019 African Olympic Qualifiers)
Belgium (2019 EuroHockey Championship winners)
Australia (2019 Oceania Cup winners)
Spain (Defeated France in Olympic qualifiers)
The Netherlands (Defeated Pakistan in Olympic qualifiers)
Canada (Defeated Ireland in Olympic qualifiers)
Japan (hosts, 2018 Asian Games champions)
Argentina (2019 Pan-American Games)
South Africa (2019 African Olympic Qualifier)
Netherlands (2019 EuroHockey Championship)
New Zealand (2019 Oceania Cup)
Spain (Defeated Korea in Olympic qualifiers)
China (Defeated Belgium in Olympic qualifiers)
Australia (Defeated Russia in Olympic qualifiers)
Who to watch: Argentine double act?
Argentina's men are defending Olympic champions and looked good at the Pan American Games, dismantling Canada in the final 5-2.
And if Los Leones were good, Las Leonas went one better, beating Canada 5-1 in the women's final to book their safe passage to Tokyo.
The women's team has won four Olympic medals including silver at Sydney 2000 and London 2012, how they would love to make it another Argentine double act at the top of both podiums in Tokyo.
Will the Olympic champs make it to Tokyo 2020?
Great Britain won their first ever hockey gold medal at Rio 2016, defeating the favoured Netherlands in the final on penalties after a thrilling 3-3 draw in regulation time.
Fast forward three years to November 2019 and it's possible that the Olympic champions may not make it to Tokyo 2020 to defend their title.
5th in the 2018 Champions Trophy, 6th in the 2018 Women's Hockey World Cup, 8th in the 2019 Pro League, it hasn't been world-beating form for Team GB since that historic Rio 2016 win.
Britain will have to play Chile in a two-leg qualifier over two days in London, and while the South Americans have never qualified for an Olympics, they looked good in the 2019 Pan American Games, making the semi-final and only losing out to eventual winners Argentina.
Netherlands on revenge trail?
Four years may have passed, but that Rio 2016 final defeat to Team GB on penalties will still be fresh in their minds.
Ranked No.1 in the world, the Netherlands come in as favourites to the women's tournament having hammered Ireland 6-0 in the final of the 2018 Women's World Cup and emerged victorious in the 2019 EuroHockey Championship too, recording some eye-watering results.
The Dutch destroyed Russia 14-1 in the preliminary round, ended English hopes in the semi-finals with whopping 8-0 win and defeated Germany 2-0 to lift the Cup.
But they aren't invincible, Spain held them to a 1-1 draw at the Euros - as did Belgium, and Australia handed the Dutch their only defeat of the 2019 FIH Pro League, edging them 1-0 in Mebourne.
Netherlands got revenge for that one blot on an otherwise perfect result card though, overcoming the Aussies on penalties (4-3) after a thrilling 2-2 draw in the FIH Pro League final.
There's no doubt that the 'Clockwork Orange' is the team to beat in Tokyo.
Netherlands end Pakistan Olympic return dream
Netherlands ended Pakistan's Olympic hopes in emphatic fashion in their qualifying play-off, after an exciting 4-4 Game 1, the Netherlands were clinical in Game 2 winning 6-1.
Pakistan men’s team are one of the most decorated hockey nations in the world with three Olympic golds (60, 68 and 84) as well as 17 appearances at the Olympic Games despite their first appearance being in 1948.
However, they have fallen on hard times in recent years: Pakistan haven’t medalled since Barcelona 1992 (bronze) and failed to qualify for Tokyo 2020.
Pakistan will have to build again towards Paris 2024.
The Dutch have made at least the semi-finals in every Olympics since Seoul 1988 and have featured at every Olympics except Moscow 1980 since 1960.
After that strong statement in the qualifying play-off against Pakistan, the oranje have to be considered contenders.
Tokyo 2020 Olympic Games Hockey schedule
The men's and women's hockey tournament will take place from Saturday 25th July to Friday 7th August at the Oi Seaside Park.
The twelve teams in the men's and women's competition will be divided into two groups of six, with each team playing each other in a round-robin format.
The top four teams from each group advance straight to the quarter-finals.
The two semi-final winners meet for the gold medal match, while the semi-final losers play in the bronze medal match.
The men's bronze and gold medal matches will take place on Thursday, 6th August and the women's on Friday 7th August:
Men's Gold Medal Match
Date and Time: Thu 6 Aug. 7pm - 9:30pm (Local time in Tokyo)
Venue: Oi Hockey Stadium - North Pitch
Women's Gold Medal Match
Date and Time: Fri 7 Aug. 7pm - 9:30pm (Local time in Tokyo)
Venue: Oi Hockey Stadium - North Pitch
Tokyo 2020 Hockey Venue
Hockey at the Olympics in Japan will take place at the Oi Hockey Stadium which is being purpose-built for the Olympics next to Tokyo bay in the beautiful Oi Central Seaside Park Sports Forest.
Plans are underway for the venue to be used for hockey and as a multi-purpose sports facility with artificial turf ground after the Tokyo 2020 Games.
Getting to the Oi Hockey Stadium
4-chome, Yashio, Shinagawa-ku, Tokyo
1-chome, Tokai, Ota-ku, Tokyo, 140 - 0003
How to get to the Olympic Hockey Stadium
- 8-min walk from Oi Keibajo Mae Sta. (MO03) on Tokyo Monorail
- 20-min walk from Tachiaigawa Sta. (KK06) on Keikyu Line.
- Take a Toei bus from [Shinagawa Eki Konanguchi (91)] and get off at [Yashio Minami], and walk 6-min.
Note: Organisers strongly recommended that you use public transportation, as other means of transportation to the venue tend to be crowded.