Havasu National Wildlife Refuge is a U.S. National Wildlife Refuge on the lower Colorado River in Arizona and California. It preserves habitat for desert bighorn sheep, the endangered southwestern willow flycatcher, and other animals. The refuge protects 30 river miles - 300 miles (480 km) of shoreline - from Needles, California, to Lake Havasu City, Arizona. One of the last remaining natural stretches of the lower Colorado River flows through the 20-mile-long (32 km) Topock Gorge.

Animal species that inhabit this refuge include peregrine falcon, coyote, fox, desert bighorn sheep, greater roadrunner, bobcat, and cougar. Thousands of bats emerge from historic mines and razorback suckers swim in the back of Beal Lake.

A large river in a dry, hot land attracts wildlife and people like a powerful magnet. Many thousands of visitors annually flock to the refuge to boat through the Topock Gorge, watch waterbirds in Topock Marsh, or hike to the Havasu Wilderness Area.

A non-profit membership organization supports and advocates for the refuge. It assists refuge staff with several of the refuge annual events, help to obtain grants to support refuge projects, conducts fund-raising activities to support environmental education programs, and helps the United States Fish and Wildlife Service operate and maintain the refuge facilities and programs by providing volunteer labor.

Fivemile Landing, Arizona
Coordinates	34°47′43″N 114°30′21″W / 34.79528°N 114.50583°W / 34.79528; -114.50583
Elevation	463 ft (141 m)
GNIS feature ID	24417

To aid visitors to the Colorado River, The U.S. Fish and Wildlife Service has allowed a private contractor to operate a boat, canoe, campsite, RV site, and a store in the refuge at Five-Mile Landing, a 35-acre (14 ha) site with boat ramps at Topock Marsh in the northern part of the refuge.

The Topock Marsh is one of the larger birding sites found in the Lower Colorado River Valley, between Hoover Dam and the Colorado River Delta.

Catfish Paradise is an area located at the southern end of the Topock Marsh. Many species living in the area include Bullfrogs, Carp, Sunfish, Catfish (Channel), Crappie, Largemouth Bass, and Tilapia.

• List of National Wildlife Refuges
• List of wilderness areas of the United States
• List of Wildlife Refuges of the Lower Colorado River Valley
• Sonoran Desert topics index

 This article incorporates public domain material from websites or documents of the United States Fish and Wildlife Service.

• Official website
• Friends of the Bill Williams River and Havasu National Wildlife Refuges
• Bird Checklist for Havasu National Wildlife Refuge