Affinger Bach

{{short description|River in Germany}}

{{Lead too short|date=June 2022}}

{{Expand German|topic=geo|date=September 2011|Affinger Bach}}

{{Infobox river

| name =Affinger Bach

| image =

| image_size =

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| map =

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| pushpin_map = Germany

| pushpin_map_size =

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| pushpin_map_alt = Mouth

| source1_location =

| mouth_location = Friedberger Ach

| mouth_coordinates = {{coord|48.4588|10.9340|display=it}}

| progression = {{RFriedberger Ach}}

| subdivision_type1 = Country

| subdivision_name1 = Germany

| subdivision_type2 = Location

| subdivision_name2 = Bavaria

| length = {{convert|7.1|km|abbr=on}} {{GeoQuelle|DE-BY|GV}}

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}}

The Affinger Bach is a river of Bavaria, Germany. It flows into the Friedberger Ach in Anwalting.