| Janez Aljančič | |
| Fullname: | Janez Aljančič |
| Birth Date: | 29 July 1982 |
| Birth Place: | Ljubljana, SFR Yugoslavia |
| Height: | 1.84m (06.04feet) |
| Position: | Defender |
| Youthyears1: | 1987–1996 |
| Youthyears2: | 1996–2001 |
| Youthclubs1: | Naklo |
| Youthclubs2: | Triglav Kranj |
| Years1: | 2000–2002 |
| Years2: | 2002–2005 |
| Years3: | 2005 |
| Years4: | 2005–2006 |
| Years5: | 2006–2009 |
| Years6: | 2009–2010 |
| Years7: | 2011–2015 |
| Clubs1: | Triglav Kranj |
| Clubs2: | Olimpija |
| Clubs3: | Ljubljana |
| Clubs4: | Triglav Kranj |
| Clubs5: | Domžale |
| Clubs6: | Maribor |
| Clubs7: | Šenčur |
| Caps1: | 29 |
| Caps2: | 58 |
| Caps3: | 8 |
| Caps4: | 24 |
| Caps5: | 84 |
| Caps6: | 22 |
| Caps7: | 83 |
| Goals1: | 0 |
| Goals2: | 1 |
| Goals3: | 0 |
| Goals4: | 2 |
| Goals5: | 4 |
| Goals6: | 0 |
| Goals7: | 1 |
| Totalcaps: | 308 |
| Totalgoals: | 8 |
| Nationalyears1: | 2006 |
| Nationalteam1: | Slovenia |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
| Pcupdate: | 25 October 2015 |
| Ntupdate: | 17 December 2008 |
Janez Aljančič (born 29 July 1982 in Ljubljana) is a retired Slovenian football defender.
Aljančič made his debut for Slovenia in an August 2006 friendly match at home against Israel, coming on as a 46th-minute substitute for Boštjan Cesar. It remained his sole international appearance.[1]