Niederirsen

{{Infobox German location

|image_coa =

|coordinates = {{coord|50|44|54|N|7|35|44|E|format=dms|display=inline,title}}

|image_plan = Niederirsen in AK.svg

|state = Rheinland-Pfalz

|district = Altenkirchen

|Verbandsgemeinde = Hamm (Sieg)

|elevation = 195

|area = 2.84

|postal_code = 57589

|area_code = 02682

|licence = AK

|Gemeindeschlüssel = 07 1 32 077

|website = [https://www.hamm-sieg.de/de/verwaltung-politik/ortsgemeinden/niederirsen/ www.hamm-sieg.de]

|mayor = Andreas Knipp[https://www.wahlen.rlp.de/de/kw/wahlen/kd/gebiete/1320000000000.html Direktwahlen 2019, Landkreis Altenkirchen], Landeswahlleiter Rheinland-Pfalz, accessed 3 August 2021.

|leader_term = 2019–24

|party =

}}

Niederirsen is a municipality in the district of Altenkirchen, in Rhineland-Palatinate, in western Germany.