{{Infoboks fodboldspiller
| name                = Janek Sternberg
| image               = 3-janek-sternberg.jpg
| fullname            = Janek Sternberg
| caption             = Sternberg i 2019
| birth_date          = {{birth date and age|df=yes|1992|10|19}}
| birth_place         = [[Bad Segeberg]], [[Tyskland]]
| height              = {{height|m=1,82}}
| position            = [[Forsvarsspiller (fodbold)|Venstre back]]
| currentclub         = [[Ferencvárosi TC|Ferencváros]]
| clubnumber          = 37
| youthyears1         = 1996–2996
| youthclubs1         = Leezener SC
| youthyears2         = 2006–2007
| youthclubs2         = SV Eichede
| youthyears3         = 2007–2011
| youthclubs3         = [[Hamburger SV]]
| years1              = 2011–2013 | caps1 = 66 | goals1 = 3 | clubs1 = [[Hamburger SV|Hamburger SV II]]
| years2              = 2011–2013 | caps2 =  0 | goals2 = 0 | clubs2 = [[Hamburger SV]]
| years3              = 2013–2017 | caps3 = 47 | goals3 = 4 | clubs3 = [[SV Werder Bremen|Werder Bremen II]]
| years4              = 2014–2017 | caps4 = 25 | goals4 = 0 | clubs4 = [[SV Werder Bremen|Werder Bremen]]
| years5              = 2017–     | caps5 = 14 | goals5 = 1 | clubs5 = [[Ferencvárosi TC|Ferencváros]]
| nationalyears1      = 2009-2010
| nationalteam1       = {{fhold|Tyskland|18}}
| nationalcaps1       = 4
| nationalgoals1      = 0
| club-update         = 11. april 2018
| nationalteam-update = 11. april 2018
| medaltemplates =
}}
Levende_personer