| Lukas Jäger | |
| Birth Date: | 1994 2, df=yes |
| Birth Place: | Alberschwende, Austria |
| Height: | 1.84 m |
| Currentclub: | Rheindorf Altach |
| Clubnumber: | 23 |
| Position: | Defensive midfielder, centre-back |
| Youthyears1: | 2003–2008 |
| Youthclubs1: | FC Alberschwende |
| Youthyears2: | 2008–2011 |
| Youthclubs2: | AKA Vorarlberg |
| Years1: | 2011–2015 |
| Clubs1: | SC Rheindorf Altach II |
| Caps1: | 59 |
| Goals1: | 5 |
| Years2: | 2011–2017 |
| Clubs2: | SC Rheindorf Altach |
| Caps2: | 112 |
| Goals2: | 3 |
| Years3: | 2017–2020 |
| Clubs3: | 1. FC Nürnberg |
| Caps3: | 16 |
| Goals3: | 0 |
| Years4: | 2017–2020 |
| Clubs4: | 1. FC Nürnberg II |
| Caps4: | 14 |
| Goals4: | 2 |
| Years5: | 2020–2022 |
| Clubs5: | Sturm Graz |
| Caps5: | 64 |
| Goals5: | 2 |
| Years6: | 2022– |
| Clubs6: | Rheindorf Altach |
| Caps6: | 60 |
| Goals6: | 2 |
| Nationalyears1: | 2009–2010 |
| Nationalteam1: | Austria U16 |
| Nationalcaps1: | 8 |
| Nationalgoals1: | 0 |
| Nationalyears2: | 2010–2011 |
| Nationalteam2: | Austria U17 |
| Nationalcaps2: | 9 |
| Nationalgoals2: | 0 |
| Nationalyears3: | 2011 |
| Nationalteam3: | Austria U18 |
| Nationalcaps3: | 2 |
| Nationalgoals3: | 0 |
| Nationalyears4: | 2012–2013 |
| Nationalteam4: | Austria U19 |
| Nationalcaps4: | 11 |
| Nationalgoals4: | 1 |
| Nationalyears5: | 2014–2016 |
| Nationalteam5: | Austria U21 |
| Nationalcaps5: | 18 |
| Nationalgoals5: | 0 |
| Club-Update: | 26 May 2024 |
Lukas Jäger (born 12 February 1994) is an Austrian professional footballer who plays for Rheindorf Altach.