Born in Chalkida, Korovesis began playing football with Apollon Smyrnis.
Nikos Korovesis will wear the jersey of PAOK from summer 2015 along with Charis Charisis.
[4] In summer 2016, PAOK officially announced that the winger was not in club's plans for the 2016–17 season.
[6] On 29 March 2018, the administration of struggling Platanias officially announced the mutual termination of Nikos Korovesis contract.
[8] On 9 December 2018, he scored his first goal for the club in an important 3–1 home win against Panathinaikos, only the second of the season.