Oy-Mittelberg

{{Infobox German location

|image_coa = DEU Oy-Mittelberg COA.svg

|image_photo = Oy-Mittelberg - Gerhalde - Kirche Mittelberg, Nebelmeer, (4).JPG

|image_caption = Church in Mittelberg

|coordinates = {{coord|47|38|N|10|26|E|format=dms|display=inline,title}}

|image_plan = Oy-Mittelberg in OA.svg

|state = Bayern

|region = Schwaben

|district = Oberallgäu

|elevation = 929

|area = 60.24

|postal_code = 87466

|area_code = 08366

|licence = OA

|Gemeindeschlüssel = 09 7 80 128

|mayor = Theo Haslach[https://www.statistik.bayern.de/wahlen/kommunalwahlen/bgm/ Liste der ersten Bürgermeister/Oberbürgermeister in kreisangehörigen Gemeinden], Bayerisches Landesamt für Statistik, accessed 19 July 2021.

|leader_term = 2017–23

|party = CSU

|website = [https://www.oy-mittelberg.de/ www.oy-mittelberg.de]

}}

Oy-Mittelberg is a municipality in the rural district Oberallgäu in Bavaria, Germany.