| Konstantinos Stivachtis | |
| Nationality: | Greek |
| Birth Date: | 22 May 1980 |
| Birth Place: | Athens, Greece |
| Height: | 1860NaN0 |
| Weight: | 800NaN0 |
| Spike: | 3050NaN0 |
| Block: | 2950NaN0 |
| Position: | Setter |
| Currentclub: |  Kifissia V.C. |
| Currentnumber: | 5 |
| Years: | 1996–2003 2003–2004 2004 2004–2005 2005–2006 2006–2007 2007–2008 2008–2010 2010–2012 2013 2013–2015 2015–2022 2022– |
| Teams: | Ethnikos Alexandroupolis Pangrati AONS Milon A.E. Nikaia Olympiacos Piraeus Orestiada Pangrati AEK Athens Pamvochaikos New Mater Panathinaikos Olympiacos Piraeus Kifissia |
| Nationalyears: | 2011–2021 |
| Nationalteam: | Greece |
| Medaltemplates-Expand: | yes |
Konstantinos Stivachtis (Greek, Modern (1453-);: Κωνσταντίνος Στιβαχτής, born 22 May 1980) is a Greek male volleyball player.[1] He is part of the Greece men's national volleyball team. On club level he plays for Kifissia.[2]