Konstantinos Kakaris (', born 2 July 1999) is a Greek water polo player, who is a member of Greece men's national water polo team. He was part of the Greek national team that played at the 2024 World Water Polo Championship in Doha. In January 2026, he was selected in the all-star team of the 2026 Men's European Water Polo Championship held in Belgrade.
He plays for the Italian team Pro Recco, the European champion in water polo. He is considered as one of the best center forwards in water polo worldwide.