A cascade is 
a small splashing waterfall that tumbles down a mountainside in a series of steps.
a series of musical notes.
a series of events which follow each other rapidly, each of which triggers the next.

Cascade may also mean:

Places

North America 
 Cascade Range, a mountain range on the west coast of North America
 Cascade Volcanoes, a grouping of volcanoes on the west coast of North America

Canada 
 Cascade Mountain (Alberta), a mountain in the Bow River Valley of Banff National Park
 Cascade, British Columbia, aka Cascade Falls, a ghost town

United States 
Communities
 Cascade, Colorado, an unincorporated town in El Paso County
 Cascade-Chipita Park, Colorado, a census-designated place
 Cascade, Idaho, a city in Valley County
 Cascade, Iowa, a city in Dubuque County and Jones County
 Cascade, Montana, a town in Cascade County
 Cascade, New Hampshire, a village within the town of Gorham and the city of Berlin
 Cascade, Seattle, Washington, a small neighborhood abutting downtown Seattle
 Cascade, Wisconsin, a village in Sheboygan County
 Cascade-Fairwood, Washington, a census-designated place in King County
 Cascade Locks, Oregon, a city in Hood River County
 Cascade Township, Michigan, a charter township of Kent County
 Cascade Township, Minnesota, in Olmsted County
 Cascade Township, Pennsylvania, in Lycoming County
 Cascade Valley, Washington, a census-designated place in Grant County

Other U.S. locations
 Cascade Highway (Washington), a portion of U.S. Route 2 through the northern Cascades in Washington
 Cascade Highway (Oregon), a portion of Oregon Route 213 running from Silverton to Stayton in Oregon
 Cascade Lakes, a collection of lakes in Oregon
 Cascade Mountain (New York), a mountain in Essex County of New York
 Cascade Park, a Lorain County Metropark in Elyria, Ohio
 Cascade Pass, a mountain pass in Washington
 Cascade Tunnel, a railroad tunnel near Everett, Washington
 Shasta Cascade, a region of northern California

Seychelles 
 Cascade, Seychelles, a district in the Republic of Seychelles

Australia 
 Cascade National Park, a national park in New South Wales

WALES, UK

Cascade, Rhymney Valley,

Technology 
 Ablation cascade, a possible catastrophic orbital event
 Biochemical cascade, a consecutive series of chemical reactions
 Complement cascade or Complement system, a biochemical cascade in the immune system
 MAPK cascade, a process in the action of cancer genes
 Cascade reaction, a consecutive series of chemical reactions within a molecule
 Electron cascade or Electron avalanche, a process in physics
 Quantum cascade laser, a unipolar semiconductor laser
 Event cascade, a problem in event-driven computer programming
 Informational cascade, an economic theory
 Cascading failure, a failure in a system of interconnected parts
 Cascade (chemical engineering), a series of chemical processes
 Cascading rollback, multiple failure after a database rollback
 Cascading Style Sheets specifying the appearance of web information
 Fractional cascading, a data structuring technique for speeding up binary searches

Organizations 
 Boise Cascade, an American pulp and paper company
 Cascade Bicycle Club, a non-profit organization and advocacy group, Seattle, Washington
 Cascade Brewery, a brewer in Hobart, Tasmania, Australia
 Cascade College, a private college in Portland, Oregon
 Cascade Communications, a manufacturer of communications equipment
 Cascade Corporation, a manufacturer of Material Handling Equipment in Portland, OR
 Cascade Investments LLC, a private investments and holding company owned by Bill Gates
 Cascade Limited, a subsidiary of Pacific Century Cyberworks (PCCW), a Hong Kong telecommunications company
 Cascade Lacrosse, a sports manufacturer
 Cascade Collegiate Conference, a sports conference in the western United States
 Open CASCADE, a software development company with head office in France
 CASCADE, an EU-funded research project, targeting health risks in food

Music 
 Cascade (album), an album by folk rock band Capercaillie
 "Cascade" (song), a single by Future Sound of London
 Cascade (band), a Japanese Visual Kei band
 Another name for German dance group Cascada

Other 
 Cascade Club and Spa[Cascade Club and Spa], premium health club based in Bangkok Thailand
 Cascade converter, a type of motor-generator
 Cascade (juggling), a juggling pattern
 Resonance cascade, the event that started "The Black Mesa Incident" in the Half-Life game series.
 Cascade virus, a computer virus
 USS Cascade (AD-16), a United States Navy destroyer tender
 A variety of hops found in North America
 Kemble's Cascade, a pattern of stars
 A brand name of detergent by Procter & Gamble
 A variety of Seibel grapes
 Superencryption, or Cascading encryption, when an encrypted message is encrypted again

Related pages
 Cascades (disambiguation)
 Cascade Falls