Ahbach Formation

{{Infobox rockunit

| name = Ahbach Formation

| image =

| caption =

| type = Formation

| age = Eifelian-Givetian
~{{fossil range|390|385}}

| period = Givetian

| prilithology = Limestone

| otherlithology = Mudstone

| namedfor =

| namedby =

| region = Nordrhein-Westfalen, Rheinland-Pfalz

| country = Germany

| coordinates = {{coord|50.3|N|7.6|E|display=inline,title}}

| paleocoordinates = {{coord|23.0|S|8.|E|display=inline}}

| unitof =

| subunits = Hallert & Olifant members

| underlies =

| overlies =

| thickness =

| extent = Eifel, Rhenisch Schiefergebirge

| area =

| map = {{Location map+ | Germany

| relief = 1

| width = 250

| float = center

| places =

{{Location map~ | Germany

| lat_deg = 50.3

| lon_deg = 7.6

| mark = Gold pog.svg

| marksize = 8

}}

{{Location map~ | Germany

| lat_deg = 50.3

| lon_deg = 6.7

| mark = Gold pog.svg

| marksize = 8

}}

{{Location map~ | Germany

| lat_deg = 50.5

| lon_deg = 6.6

| mark = Gold pog.svg

| marksize = 8

}}

}}

| map_caption =

}}

The Ahbach Formation is a geologic formation in Germany. It preserves fossils dating back to the Middle Devonian period.