Mangawai River

{{Use New Zealand English|date=April 2024}}

{{Use dmy dates|date=July 2019}}

{{Infobox river

| name = Mangawai River

| image =

| image_size =

| image_caption =

| source1_location =

| mouth_location = Manganui River (Northland)

| subdivision_type1 = Country

| subdivision_name1 = New Zealand

| length =

| source1_elevation =

| mouth_elevation =

| mouth_coordinates = {{coord|36|00|56|S|174|16|08.7|E|region:NZ_type:isle_scale:500000}}

| discharge1_avg =

| basin_size =

| subdivision_type2 = Region

| subdivision_name2 = Northland Region

}}

{{distinguish|Mangawhai River}}

The Mangawai River is a small river of the Northland Region of New Zealand.{{cite web |title=Mangawai River |url=https://www.topomap.co.nz/NZTopoMap/nz7238/Mangawai-River/ |website=NZ Topo Map |access-date=21 November 2024}} It changes name to the Manganui River (Northland) near to where it is crossed by the North Auckland Line.{{cite web |title=Maps |url=https://www.google.com/maps/place/36%C2%B000'52.1%22S+174%C2%B016'19.3%22E/@-36.011568,174.271626,1167m/data=!3m1!1e3!4m4!3m3!8m2!3d-36.014471!4d174.272038?hl=en&entry=ttu&g_ep=EgoyMDI0MTExOC4wIKXMDSoASAFQAw%3D%3D |website=Google Maps}}

The rivers ultimately flow into the Wairoa River (Northland) {{convert|20|km}} upstream of Dargaville, before ending in the Kaipara Harbour.{{cite web |title=Way: Mangawai River (1306269944) |url=https://www.openstreetmap.org/way/1306269944#map=14/-35.97731/174.28762 |website=Open Street Map |access-date=21 November 2024}}