Aleksandar Trninić

{{short description|Serbian footballer}}

{{Infobox football biography

| name = Aleksandar Trninić

| image =

| fullname =

| height = {{height|meters=1.90}}

| birth_date = {{Birth date and age|1987|3|27}}

| birth_place = Belgrade, SFR Yugoslavia

| currentclub = Radnički Beograd

| clubnumber =

| position = Centre-Back / Defensive midfielder

| youthyears1 = 2004–2005

| youthclubs1 = Cham

| youthyears2 = 2005–2007

| youthclubs2 = Rad

| years1 = 2004

| clubs1 = Cham

| caps1 = 0

| goals1 = 0

| years2 = 2005–2008

| clubs2 = Rad

| caps2 = 23

| goals2 = 0

| years3 = 2005–2006

| clubs3 = → Radnički Obrenovac (loan)

| caps3 = 18

| goals3 = 0

| years4 = 2007

| clubs4 = → Palilulac Beograd (loan)

| caps4 = 14

| goals4 = 2

| years5 = 2008–2009

| clubs5 = Spartak Subotica

| caps5 = 0

| goals5 = 0

| years6 = 2009

| clubs6 = → Čukarički (loan)

| caps6 = 2

| goals6 = 0

| years7 = 2009

| clubs7 = Leotar

| caps7 = 14

| goals7 = 0

| years8 = 2010

| clubs8 = Čukarički

| caps8 = 18

| goals8 = 0

| years9 = 2011–2012

| clubs9 = Michalovce

| caps9 = 12

| goals9 = 0

| years10 = 2012–2013

| clubs10 = Čukarički

| caps10 = 44

| goals10 = 3

| years11 = 2013–2014

| clubs11 = Debrecen

| caps11 = 10

| goals11 = 0

| years12 = 2014

| clubs12 = Vardar

| caps12 = 5

| goals12 = 0

| years13 = 2014

| clubs13 = Radnički Niš

| caps13 = 1

| goals13 = 0

| years14 = 2015–2016

| clubs14 = Rad

| caps14 = 18

| goals14 = 2

| years15 = 2016–2018

| clubs15 = KA

| caps15 = 58

| goals15 = 7

| years16 = 2019

| clubs16 = Al-Shabab

| caps16 =

| goals16 =

| years17 = 2019–2021

| clubs17 = Rad

| caps17 = 38

| goals17 = 2

| years18 = 2021–

| clubs18 = Radnički Beograd

| caps18 = 0

| goals18 = 0

| pcupdate = 19 May 2021

}}

Aleksandar Trninić ({{lang-sr-cyrl|Александар Трнинић}}; born 27 March 1987) is a Serbian football defensive midfielder who plays for Radnički Beograd.