| Jānis Porziņģis | |
| Height Ft: | 6 |
| Height In: | 7.5 |
| Weight Lb: | 225 |
| Birth Date: | 13 July 1982 |
| Birth Place: | Liepāja, Latvia |
| Nationality: | Latvian |
| Career Position: | Small forward |
| Career Start: | 2000 |
| Career End: | 2013 |
| Years1: | 2000–2001 |
| Team1: | Ventspils |
| Years2: | 2001–2002 |
| Team2: | Liepājas Lauvas |
| Years3: | 2002–2003 |
| Team3: | Gulbenes Buki |
| Years4: | 2003–2004 |
| Team4: | Neptūnas Klaipėda |
| Years5: | 2004 |
| Team5: | Kapfenberg Bulls |
| Years6: | 2004–2005 |
| Team6: | Norrköping Dolphins |
| Years7: | 2005 |
| Team7: | Scarlet Vilvoorde |
| Years8: | 2005–2006 |
| Team8: | Soproni Sordogok |
| Years9: | 2006–2007 |
| Team9: | Basket Livorno |
| Years10: | 2007–2008 |
| Team10: | Pistoia Basket 2000 |
| Years11: | 2008 |
| Team11: | New Basket Brindisi |
| Years12: | 2008–2009 |
| Team12: | Liepājas Lauvas |
| Years13: | 2009–2010 |
| Team13: | Roseto Sharks |
| Years14: | 2010–2011 |
| Team14: | Pistoia Basket 2000 |
| Years15: | 2011–2012 |
| Team15: | Liepājas Lauvas |
| Years16: | 2012 |
| Team16: | Valmiera |
| Years17: | 2012 |
| Team17: | Guerino Vanoli Basket |
| Years18: | 2012 |
| Team18: | Valmiera |
| Years19: | 2012–2013 |
| Team19: | Palencia Baloncesto |
| Years20: | 2013 |
| Team20: | Šibenik |
Jānis Porziņģis (born 13 July 1982) is a Latvian former professional basketball player. At a height of, he played at the small forward position. He is the older brother of Boston Celtics forward Kristaps Porziņģis.
Porziņģis played for 15 different teams, in multiple European national domestic leagues over a 14-year career. He officially retired from playing professional basketball in 2015, after having last played in 2013.
Porziņģis also made a few appearances with the senior Latvian national team.
After he retired from playing professional basketball, Porziņģis became an agent for his younger brother, Kristaps Porziņģis, who is also a professional basketball player for the Boston Celtics of the National Basketball Association (NBA).[1]