| Nikos Kalles Νίκος Καλλές | |
| Position: | Center |
| Height Ft: | 6 |
| Height In: | 11 |
| Weight Lbs: | 260 |
| League: | Greek A2 Basket League |
| Team: | ASK Karditsas |
| Number: | 15 |
| Nationality: | Greek |
| Birth Date: | 20 April 1987 |
| Birth Place: | Larissa, Greece |
| Career Start: | 2006 |
| Years1: | 2006–2009 |
| Team1: | Iraklis |
| Years2: | 2009–2014 |
| Team2: | PAOK |
| Years3: | 2014–2015 |
| Team3: | Panelefsiniakos |
| Years4: | 2015–2017 |
| Years5: | 2017–2018 |
| Years6: | 2018–present |
| Team6: | ASK Karditsa |
Nikos Kalles (Greek: Νίκος Καλλές; born April 20, 1987) is a Greek professional basketball player. He is a 6 ft 11 in (2.11 m) tall center.
Kalles started his pro career in 2006, with Iraklis. He moved to PAOK in 2009. He stayed at the club until 2014. In 2014, he signed with Panelefsiniakos.[1]
On October 23, 2015, Kalles signed with Aries Trikala, of the Greek Basket League.[2] After the appointment of Ioannis Kastritis as the team's head coach, he renewed his contract for one more season.