Hainau, Germany

{{Infobox German location

|name = Hainau

|type = Ortsgemeinde

|image_coa = DEU Hainau COA.svg

|coordinates = {{coord|50.22259|7.78187|format=dms|display=inline,title}}

|image_plan = Hainau in EMS.svg

|state = Rheinland-Pfalz

|district = Rhein-Lahn-Kreis

|Verbandsgemeinde = Nastätten

|elevation = 280

|area = 3.31

|postal_code = 56357

|area_code = 06772

|licence = EMS, DIZ, GOH

|Gemeindeschlüssel = 07 1 41 110

|divisions =

|website = [http://www.hainau.de/ www.hainau.de]

|mayor = Carsten Schmidt[https://www.wahlen.rlp.de/de/kw/wahlen/kd/gebiete/1410000000000.html Direktwahlen 2019, Rhein-Lahn-Kreis], Landeswahlleiter Rheinland-Pfalz, accessed 5 August 2021.

|leader_term = 2019–24

|party =

}}

Hainau is a municipality in the district of Rhein-Lahn, in Rhineland-Palatinate, in western Germany.