Twin Falls can refer to:

Cities and counties

• Twin Falls, Idaho
• Twin Falls County, Idaho

Waterfalls

In Australia

• Twin Falls (Northern Territory), a waterfall in the Kakadu National Park in the Northern Territory

In Canada

• Twin Falls (British Columbia), a waterfall in Yoho National Park, British Columbia
• Twin Falls (Labrador), a waterfall and hydroelectric generating station in Labrador

In the Philippines

• Twin Falls (Camarines Sur), a waterfall named Itbog Falls located in Buhi, Camarines Sur

In the United States

• Twin Falls (Idaho), a waterfall in Idaho, the namesake of the city of Twin Falls
• Twin Falls (Montana), a waterfall in the Glacier National Park
• Twin Falls (Oregon), a waterfall in the Silver Falls State Park.
• Twin Falls (South Carolina), a waterfall near Pickens
• Twin Falls (Washington), a waterfall near North Bend in Washington state
• Twin Falls (Hawaii), a waterfall in Maui, Hawaii

In music

• Twin Falls (band), an indie electronic folk band from Somerset, England
• "Twin Falls", a song from the 1994 album There's Nothing Wrong with Love by Built to Spill
• "Twin Falls", a live cover released by Ben Folds Five on their 1998 album Naked Baby Photos

Other

• USNS Twin Falls (T-AGM-11), a missile range instrumentation ship
• Twin Falls Resort State Park, Saulsville, West Virginia