The Club can confirm young midfielder Hector Kyprianou has agreed professional terms until July 2021.
The professional deal will begin on July 1 2019 and he is continuing his work experience loan at Bishop's Stortford under former-O Jamie Cureton.
Kyprianou told leytonorient.com, "I'm really proud, it means a lot. I came here at Under-14's and the Club has supported me well so I'm really glad to be here."
Head Coach Justin Edinburgh praised the youngster saying, "The improvement in Hector since I came in, the change in his physicality, him as a man has earned him the professional contract that he deserves. I'm pleased for him."