| Sebastian Iwanicki | |
| Full Name: | Sebastian Iwanicki |
| Birth Date: | 3 September 1985 |
| Birth Place: | Warsaw, Poland |
| Height: | 1.80 m |
| Position: | Midfielder |
| Youthclubs1: | Canet |
| Youthclubs2: | Cherbourg |
| Youthclubs3: | PL Octeville |
| Youthyears4: | 2001–2002 |
| Youthclubs4: | Agrykola Warsaw |
| Years1: | 2002–2004 |
| Clubs1: | Legia Warsaw II |
| Years2: | 2004 |
| Clubs2: | Świt Nowy Dwór |
| Caps2: | 1 |
| Goals2: | 0 |
| Years3: | 2005 |
| Clubs3: | Górnik Zabrze |
| Caps3: | 1 |
| Goals3: | 0 |
| Years4: | 2005 |
| Clubs4: | GLKS Nadarzyn |
| Years5: | 2006 |
| Clubs5: | Unia Janikowo |
| Years6: | 2007 |
| Clubs6: | ŁKS Łódź |
| Caps6: | 0 |
| Goals6: | 0 |
| Years7: | 2008 |
| Clubs7: | Stal Głowno |
| Caps7: | 5 |
| Goals7: | 0 |
| Years8: | 2009 |
| Clubs8: | Narew Ostrołęka |
| Caps8: | 14 |
| Goals8: | 0 |
| Years9: | 2010 |
| Clubs9: | Victoria Sulejówek |
| Years10: | 2010–2011 |
| Clubs10: | Tęcza 34 Płońsk |
| Years11: | 2012–2015 |
| Clubs11: | Victoria Sulejówek |
| Years12: | 2015–2016 |
| Clubs12: | Drukarz Warsaw |
Sebastian Iwanicki (born 3 September 1985) is a Polish former professional footballer who played as a midfielder. He is a trainee of Agrykola Warsaw. His father Krzysztof and uncle Leszek were also footballers.