Balfour River

{{Short description|River in the South Island of New Zealand}}

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

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

{{Infobox river

| name = Balfour River

| native_name =

| image =

| image_size =

| image_caption =

| map = {{Maplink|frame=yes|type=line|plain=yes|zoom=10|frame-align=center|frame-width=270|frame-height=270|stroke-color=#0000ff|stroke-width=2}}

| map_size =

| map_caption = Route of the Balfour River

| map_alt =

| pushpin_map = New Zealand South Island#New Zealand

| pushpin_map_size = 270px

| pushpin_map_caption = Mouth of the Balfour River

| pushpin_map_alt =

| source1 = Balfour Glacier

| source1_location =

| source1_coordinates = {{coord|-43.5504|170.0630|type:river_region:NZ|display=inline}}

| source1_elevation =

| source2_elevation =

| mouth_location = Cook River / Weheka

| mouth_elevation = {{convert|160|m|ft|abbr=on}}

| mouth_coordinates = {{coord|-43.52666|169.98777|region:NZ|format=dms|display=inline,title}}

| subdivision_type1 = Country

| subdivision_name1 = New Zealand

| subdivision_type2 = Region

| subdivision_name2 = West Coast

| subdivision_type3 = District

| subdivision_name3 = Westland

| length = {{convert|7.4|km|mi}}

| discharge1_avg =

| basin_size =

| progression = Balfour River → Cook River / Weheka → Tasman Sea

| river_system =

| tributaries_left =

| tributaries_right = McKenna Creek, Craig Creek

| waterfalls =

| bridges =

}}

The Balfour River is a river in the Westland district of New Zealand. Its source is the Balfour Glacier and it runs west then northwest for about {{convert|7.4|km|mi|0}} to the Cook River / Weheka.