The Japanese driver made his debut in the newly formed FIA Formula 3 championship last year, finishing ninth in the drivers' standings.
The 19-year-old took three podium finishes throughout the year, including a Sprint Race victory at Monza, following on from a third-place result at the Italian circuit one day before.
Over half of the F2 grid is now locked in place for 2020, with Tsuonda's teammate at the British Carlin team yet to be confirmed.
2019 was Tsuonda's first year of racing outside of Japan. At the post-season F2 test, Tsuonda was present at Carlin during all three days of running.
While Tsuonda graduates from the F3 championship, his compatriot and fellow Honda-back driver Teppei Natori, who raced in F3 last year, will return to Japan in 2020.
Confirmed 2020 F2 drivers and teams
|ART Grand Prix||Marcus Armstrong||TBA|
|Charouz Racing System||Louis Deletraz||Pedro Piquet|
|DAMS||Sean Gelael||Dan Ticktum|
|HWA Racelab||Giuliano Alesi||Artem Markelov|
|MP Motorsport||Felipe Drugovich||TBA|
|Prema Racing||Mick Schumacher||Robert Shwartzman|
|Virtuosi Racing||Callum Ilott||TBA|
Bahrain International Circuit - Winter testing