Nikolas Theodorou (Greek: Νικόλας Θεοδώρου; born 17 September 2000) is a Greek chess player who holds the title of Grandmaster since 2021. He is a Chess Olympiad individual silver medal winner (in 2022).

Nikolas Theodorou was born in Athens in 2000. In 2006, his family moved to Atsipopoulo in Rethymno for business reasons. He grew up there, where he finished elementary school.

In Rethymnon, Theodorou attended high school. He was an excellent student and in 2018 he graduated from the Experimental High School of Rethymnon.

From a very young age, since 2007, Theodorou started chess lessons at the Chess Club of Rethymno. Since 2015 he has been a student of the Chania Chess Academy.

Theodorou has taken part in many pan-Hellenic and international chess tournaments. In 2022, with the chess team of the Saint Louis University, he achieved first place in the Final Four of the USA Collegiate Chess.

Theodorou played for Greece in the European Team Chess Championship:

Theodorou played for Greece in the Chess Olympiad:

In 2016, he was awarded the FIDE International Master (IM) title and received the FIDE Grandmaster (GM) title five years later.