Tewaukon National Wildlife Refuge

{{Use mdy dates|date=January 2025}}

{{Infobox protected area

| name = Tewaukon National Wildlife Refuge

| iucn_category = IV

| map = USA

| relief = 1

| map_caption = Map of the United States

| map_width = 300

| photo = Tewaukon National Wildlife Refuge Visitor Center Cayuga, North Dakota.JPG

| photo_caption = Visitor Center

| photo_width =

| location = Sargent County, North Dakota, United States

| nearest_city = Cayuga, North Dakota

| coordinates = {{coord|46.00412|-97.38509|region:US-ND|notes={{cite gnis|1032459|Tewaukon National Wildlife Refuge}}|display=inline, title}}

| area = {{convert|8363|acre|km2|abbr=on}}

| established = 1945

| visitation_num =

| visitation_year =

| governing_body = U.S. Fish and Wildlife Service

| website = [https://www.fws.gov/refuge/tewaukon/ Tewaukon National Wildlife Refuge]

}}

Tewaukon National Wildlife Refuge is located in southeastern North Dakota along the western edge of the northern tallgrass prairie, about {{convert|5|mi|km}} south of Cayuga, in Sargent County. The Wild Rice River flows through the Refuge and then into Lake Tewaukon. Established in 1945, the {{convert|8363|acre|km2|adj=on}} Refuge is located in the Prairie Pothole Region, one of the most biologically productive areas on earth. It lies within the Tewaukon Wetland Management District.