Dimitrios "Dimitris" Nikolaidis (born 10 June 1999) is a Greek water polo player, who is a member of Greece men's national water polo team. He is part of Greece national team that competes at the 2018 European Water Polo Championship in Barcelona. He plays for Italian team Brescia, Nikolaidis won the 2017–18 LEN Champions League with Olympiacos in Genoa