Tsubo River

{{Infobox river

| name = Tsubo River

| native_name ={{native name|ja|津保川}}

| image = Tsubo river.JPG

| image_size =

| image_caption = Tsubo River in Seki

| source1_location =

| mouth_location = Nagara River

| subdivision_type1 = Country

| subdivision_name1 = Japan

| length = {{convert|45.8|km|mi|abbr=on}}

| source1_elevation =

| mouth_elevation =

| discharge1_avg =

| basin_size =

| river_system = Kiso River

}}

The {{nihongo|Tsubo River|津保川|Tsubo-gawa}} has its source in the northeastern portion of the city of Seki, Gifu Prefecture, Japan. From there, it flows through Gifu and into the Nagara River. It is part of the Kiso River system.