Diomidis Symeonidis (1908 – 24 April 1981) was a Cypriot footballer, one of the founders of APOEL.

Symeonidis was born in 1908 and was, along with his brother Christos, a footballer of Aetos - a local Nicosia club - until 1926 when he met Georgios Poulias. The two men founded POEL which evolved into APOEL. Symeonidis played for the team he co-founded until 1929 when he transferred to Panathinaikos in the Greek League. His career at PAO ended in 1934 due to an injury and Symeonidis returned to Cyprus where he was player/coach for APOEL and for Enosis Neon Trust.

He won one greek championship (1930) and one cypriot championship (1935).

During his career, Symeonidis was capped 5 times by the Greece national football team. He died in 1981 in his late 70s.^[1]