Kyriaki Kydonaki (born 7 February 2001) is a Greek karateka. She is a gold medalist at the Mediterranean Games and the European Karate Championships. She is also a bronze medalist at the World Karate Championships and the European Games.
Kydonaki competed in the girls' +59kg event at the 2018 Summer Youth Olympics held in Buenos Aires, Argentina. She was eliminated in the elimination round and she did not advance to the semi-finals.
In 2022, Kydonaki won one of the bronze medals in the women's +68kg event at the European Karate Championships held in Gaziantep, Turkey. She defeated Lucija Lesjak of Croatia in her bronze medal match. A month later, she won the gold medal in the women's +68kg event at the 2022 Mediterranean Games held in Oran, Algeria. In the final, she defeated Milena JovanoviÃÂ of Montenegro.
Kydonaki competed in the women's +68kg event at the 2023 European Karate Championships held in Guadalajara, Spain. She won one of the bronze medals in the women's +68kg event at the 2023 European Games held in Poland. In the same year, she competed in the women's +68kg event at the World Karate Championships held in Budapest, Hungary. She won her first match and she was then eliminated by eventual bronze medalist Clio Ferracuti of Italy.
Kydonaki won the gold medal in the women's +68kg event at the 2025 European Karate Championships held in Yerevan, Armenia. She defeated Dariia Bulay of Ukraine in her gold medal match.