Darby O'Gill is a fictional Irishman

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

 who appears in the writings of the Irish-American author Herminie Templeton Kavanagh

Herminie Templeton Kavanagh

Herminie Templeton Kavanagh was a British writer, most known for her short stories.She was born Herminie McGibney, the daughter of Major George McGibney of Longford, Ireland...

, including her books Darby O'Gill and the Good People (1903) and Ashes of Old Wishes and Other Darby O'Gill Tales (1926).

Film

In 1959, the Disney corporation adapted Kavanaugh's works to the silver screen under the title Darby O'Gill and the Little People

Darby O'Gill and the Little People

Darby O'Gill and the Little People is a 1959 Walt Disney Productions feature film starring Albert Sharpe, Janet Munro, Sean Connery and Jimmy O'Dea, in a tale about a wily Irishman and his battle of wits with leprechauns. The film was directed by Robert Stevenson and its screenplay written by...

. In the film, O'Gill is an aging groundskeeper who engages in a friendly battle of wits with a leprechaun

Leprechaun

A leprechaun is a type of fairy in Irish folklore, usually taking the form of an old man, clad in a red or green coat, who enjoys partaking in mischief. Like other fairy creatures, leprechauns have been linked to the Tuatha Dé Danann of Irish mythology...

 king, and is played by the actor Albert Sharpe

Albert Sharpe

Albert Sharpe was an Irish stage and film actor. His most famous roles were those of Disney's Darby O'Gill and the Little People and as Finian McLonergan in the Broadway stage production of the musical Finian's Rainbow...

.

Music

At least two American Irish-music bands have taken O'Gill's name under which to perform. Darby O'Gill

Darby O'Gill (band)

Darby O'Gill is an Irish/folk band based in Portland, Oregon. The band's name is taken from a fictional character who appears in the writings of the Irish-American author Herminie Templeton Kavanagh.- Band history :Darby O'Gill was formed in 1994...

 operates in Portland, Oregon

Portland, Oregon

Portland is a city located in the Pacific Northwest, near the confluence of the Willamette and Columbia rivers in the U.S. state of Oregon. As of the 2010 Census, it had a population of 583,776, making it the 29th most populous city in the United States...

, while Darby O'Gill and the Little People

Darby O' Gill and the Little People (band)

Darby O'Gill and the Little People is an indie folk-rock band from Las Vegas. The band takes its name from the 1959 Disney film Darby O'Gill and the Little People...

 center their performances in Las Vegas

Las Vegas, Nevada

Las Vegas is the most populous city in the U.S. state of Nevada and is also the county seat of Clark County, Nevada. Las Vegas is an internationally renowned major resort city for gambling, shopping, and fine dining. The city bills itself as The Entertainment Capital of the World, and is famous...

. Apart from the use of the name, the two bands have no connection.