2019 world bronze medalist Theodora Gkountoura claimed a spot in the women's sabre as one of the two highest-ranked fencers vying for qualification from Europe in the FIE Adjusted Official Rankings.

[10] On 25 June 2021, Eleftherios Petrounias secured a position in men's rings at the 2020 Summer Olympics, by winning a gold medal with 15.500 points at the 2020–2021 FIG World Cup in Doha, Qatar.

[14][15] Another Greek rower scored a gold-medal triumph to book one of the remaining boats available in the women's single sculls at the 2021 FISA Final Qualification Regatta in Lucerne, Switzerland.

Panagiotis Gionis scored a third-stage semifinal triumph to book his fifth consecutive trip to the Games in the men's singles at the European Qualification Tournament in Odivelas, Portugal.

2018 Youth Olympic bronze medalist Fani Tzeli secured a spot in the women's lightweight category (57 kg) with a top two finish at the 2021 European Qualification Tournament in Sofia, Bulgaria.

[25][26] Greece men's national water polo team qualified for the Olympics by advancing to the final match of the 2020 World Qualification Tournament in Rotterdam, Netherlands.