Clarence Cannon National Wildlife Refuge

{{Short description|National Wildlife Refuge in Pike County, Missouri}}

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

{{Infobox protected area

| name = Clarence Cannon National Wildlife Refuge

| iucn_category = IV

| map = USA#Missouri

| relief = 1

| map_caption = Map of the United States

| map_width = 300

| photo = Fall migration at Clarence Cannon NWR (6366882263).jpg

| photo_caption = Fall migration, Clarence Cannon National Wildlife Refuge, November 2011

| photo_width =

| location = Pike County, Missouri, United States

| nearest_city = Annada, Missouri

| coordinates = {{coord|39.267|-90.784|region:US-MO_dim:3000|notes={{cite gnis|715869|Clarence Cannon National Wildlife Refuge}}|display=inline, title}}

| area = {{convert|3750|acre|km2|abbr=on}}

| established = 1964

| visitation_num =

| visitation_year =

| governing_body = U.S. Fish and Wildlife Service

| website = [https://www.fws.gov/refuge/clarence_cannon/ Clarence Cannon National Wildlife Refuge]

}}

The {{convert|3750|acre|km2|adj=on}} Clarence Cannon National Wildlife Refuge is located in the floodplain of the Mississippi River, adjacent to Pool No. 25 in Pike County, Missouri. The refuge's diversity of habitats supports waterfowl, wading birds, shorebirds, and songbirds. Although it is protected by a levee, the refuge provides flood storage in periods of high water.

Clarence Cannon Refuge is managed by Great River National Wildlife Refuge, which is part of the Mark Twain National Wildlife Refuge Complex.