Lanyang River

{{Infobox river

| name = Lanyang River

| native_name = {{native name|zh-Hant|蘭陽溪}}

| name_other =

| etymology =

| image = Taiwan LanYang River 2.JPG

| image_size =

| image_caption =

| image_alt =

| pushpin_map = Taiwan

| pushpin_map_alt = Map showing the mouth of Lanyang River

| pushpin_map_caption = Lanyang River in Taiwan

| mapframe = yes

| mapframe-zoom = 8

| river_system =

| progression =

| source1_location = Nanhu Mountain

| source1_coordinates=

| source1_elevation = {{convert|3536|m|abbr=on}}

| mouth_location = Pacific Ocean: Yilan

| mouth_coordinates = {{coord|24.715|N|121.834|E|display=inline,title}}

| mouth_elevation =

| altitude_difference=

| basin_size = {{convert|978|km2|abbr=on}}

| subdivision_type1 = Country

| subdivision_name1 = Taiwan

| basin_cities =

| basin_landmarks =

| basin_population =

| length = {{convert|73|km|abbr=on}}

| width_min =

| width_avg =

| width_max =

| depth_min =

| depth_avg =

| depth_max =

| discharge1_location=

| discharge1_min = 2.85 m³/s

| discharge1_avg =

| discharge1_max = 5,420 m³/s

| tributaries_left = Yilan River

| tributaries_right = Dongshan River

| waterbodies =

| waterfalls =

| bridges =

| ports =

| custom_label =

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| extra =

}}

The Lanyang River ({{zh|t=蘭陽溪|p=Lányáng Xī}}) is a river in northeast Taiwan.{{cite book |title=The Republic of China Yearbook 2015 |chapter=Geography & demographics |date=2015 |publisher=Executive Yuan |isbn=978-986-04-6013-1 |pages=40–53 |url=http://yearbook.multimedia.ey.gov.tw/enebook/2015yearbook/index.html |access-date=2016-05-01 |archive-url=https://web.archive.org/web/20160531095543/http://yearbook.multimedia.ey.gov.tw/enebook/2015yearbook/index.html |archive-date=2016-05-31 |url-status=dead }}{{cite web |url=http://enwww.e-land.gov.tw/cp.aspx?n=471BF3A523D05BB2&s=235733001BBDD8D2 |date=11 May 2016 |publisher=Yilan County Government |title=Geographic Environment: The Main River of Lanyang Plain |accessdate=19 June 2016}}