Rettenbach, Swabia

{{Infobox German location

|name = Rettenbach

|image_coa = DEU Rettenbach COA.svg

|coordinates = {{coord|48|28|N|10|21|E|format=dms|display=inline,title}}

|image_plan = Rettenbach in GZ.svg

|state = Bayern

|region = Schwaben

|district = Günzburg

|elevation = 439-501

|area = 12.75

|postal_code = 89364

|area_code = 08224

|licence = GZ

|Gemeindeschlüssel = 09 7 74 174

|mayor = Sandra Dietrich-Kast[https://www.statistik.bayern.de/wahlen/kommunalwahlen/bgm/ Liste der ersten Bürgermeister/Oberbürgermeister in kreisangehörigen Gemeinden], Bayerisches Landesamt für Statistik, 15 July 2021.

|leader_term = 2020–26

|party = CSU

|website =

}}

Rettenbach is a municipality in the district of Günzburg in Bavaria in Germany. The following Gemarkungen exist: Harthausen, Remshart, Rettenbach.