Clarion may refer to:

Music

Clarion (instrument), a type of trumpet used in the Middle Ages

Clarion (accessible musical instrument), for disabled musicians

The register of a clarinet that ranges from B4 to C6

A trumpet organ stop that usually plays an octave above unison pitch

"Clarion" (song), a 2008 single by multinational band Guillemots

Places

Mexico

Clarion Island (Isla Clarión), Colima

United Kingdom

Whitefield School, a school in London renamed Clarion School in 2025

United States

Clarion, Illinois

Clarion, Iowa

Clarion, Michigan

Clarion, Utah, a ghost town settled as a Jewish farming colony

Pennsylvania

Clarion County, Pennsylvania

Clarion, Pennsylvania, a borough in and the county seat of Clarion County

Clarion Township, Clarion County, Pennsylvania

Clarion River, Pennsylvania, a tributary of the Allegheny River

Clarion University of Pennsylvania, a public university located in Clarion, Pennsylvania

Publishing

Peninsula Clarion, a regional newspaper published in Kenai, Alaska, U.S.

Clarion Herald, the official newspaper of the Archdiocese of New Orleans in the U.S. state of Louisiana

Clarion (magazine), a literary magazine published in Boston, Massachusetts, U.S.

The Clarion-Ledger, a daily newspaper in the U.S. state of Mississippi, and the second oldest company in that state

Clarion Workshop, a science fiction and fantasy workshop based in San Diego, California, U.S.

Clarion West Writers Workshop, a science fiction and fantasy workshop based in Seattle, Washington, U.S.

The Clarion (British newspaper), a defunct weekly socialist newspaper that was published in the United Kingdom

Western Clarion, a defunct newspaper that served as the official organ of the Socialist Party of Canada from 1903 to 1925

The Clarion, a defunct quarterly magazine published by the American Folk Art Museum from 1971 until 1992

Clarion Books, a young adult publishing imprint of HarperCollins

The Clarion (Canadian newspaper), the Canadian newspaper started by Carrie Best in 1946

DU Clarion, university newspaper of the University of Denver

Computing

CLARION (cognitive architecture)

Clarion (programming language)

CLARiiON, an EMC disk array

Animals

Clarion nightsnake (Hypsiglena unaocularis), a small colubrid snake

Clarion snake eel (Myrichthys pantostigmius), a tropical, marine eel

Clarión wren (Troglodytes tanneri), a species of bird

Proud Clarion, an American Thoroughbred racehorse, winner of the 1967 Kentucky Derby

Clarion angelfish (Holacanthus clarionensis), a species of saltwater angelfish

Companies and organizations

Clarion (company), a Japanese automotive and consumer electronics manufacturer

Clarion Project, a nonprofit organization based in Washington D.C., USA

Clarion Hotel, a hotel brand in the United States

Clarion Hotel Limerick, a hotel in Limerick, Ireland

Clarion Housing Group, a British housing association

National Clarion Cycling Club, a cycling club with some 29 member sections in the United Kingdom

Other uses

Clarion Award, an honor for excellence in communications from the Association for Women in Communications

Clarion (heraldry), a charge or bearing in heraldry

Operation Clarion, an extensive Allied campaign of strategic bombing during World War II against Nazi Germany