A glen is a valley, typically one that is long, deep, and often glacially U-shaped; or one with a watercourse running through such a valley. Whittow defines it as a "Scottish term for a deep valley in the Highlands" that is "narrower than a strath."

The word is Goidelic: gleann in Scottish and Irish Gaelic, glion in Manx. In Manx, glan is also to be found meaning glen. It is cognate with Welsh glyn. As the name of a river, it is thought to derive from the Welsh word glan meaning clean, or gleindid meaning purity.

One stunning example is the Glens of Antrim in Northern Ireland where nine glens radiate out from the Antrim plateau to the sea along the coast between Ballycastle and Larne.

In the Finger Lakes Region of New York State, the southern ends of Seneca and Cayuga in particular are etched with glens, although in this region the term "glen" refers most frequently to a narrow gorge, as opposed to a wider valley or strath. The steep hills surrounding these lakes are filled with loose shale from glacial moraines. This material has eroded over the past 10,000 years to produce beautiful rocky glens (e.g., Watkins Glen and Treman State Parks) and waterfalls as rainfall has descended toward the lakes below.

Glen Keane (born April 13, 1954) is an American animator, author and illustrator. Keane is best known for his character animation at Walt Disney Studios for feature films including The Little Mermaid, Aladdin, Beauty and the Beast, Tarzan, and Tangled. Keane received the 1992 Annie Award for character animation and the 2007 Winsor McCay Award for lifetime contribution to the field of animation.

Keane was born in Philadelphia, Pennsylvania, the son of cartoonist Bil Keane, creator of the The Family Circus, and Thelma "Thel" Carne Keane. He was raised in Paradise Valley, Arizona.

Keane's interest in art developed as a child by observing his father's work as a cartoonist. (Glen's younger self is represented in his father's comic strip as the character of "Billy"). In his early attempts to draw, his dad gave him a copy of Burne Hogarth's Dynamic Anatomy, and instructed him to analyze the body forms and the creative approach to life drawing. After high school, Glen applied to the California Institute of the Arts-School of Art, opting out of accepting a football scholarship from another college. In a lucky twist of fate, his application was accidentally sent to the Program in Experimental Animation (then called Film Graphics), where he was mentored under the now-renowned animation teacher Jules Engel.

Glen Hansard (born 21 April 1970 in Dublin, Ireland) is the Academy Award–winning principal songwriter and vocalist/guitarist for Irish group The Frames and one half of folk rock duo, The Swell Season. He is also known for his acting, having appeared in the BAFTA winning film The Commitments, as well as starring in the film Once. His song, "Falling Slowly", from Once, co-written with his co-star Markéta Irglová, won the Academy Award for Best Original Song in 2007, and earned him ten other major awards or nominations between 2007-08.

Hansard quit school at age 13 to begin busking on local Dublin streets. He formed The Frames in 1990, and they've been staples of the Irish music scene ever since. Their first album, Another Love Song, was released on Island Records in 1991, and their most recent, The Cost, was released in 2006.^{[citation needed]}

Hansard came to international attention as guitar player Outspan Foster in the 1991 Alan Parker film The Commitments, after attending the New York Film Academy School of Acting. He has often stated that he regretted taking the role, because he felt it distracted him from his music career. In 2003, he presented the television programme Other Voices: Songs from a Room, which showcased Irish music talent on RTÉ.

Glen Travis Campbell (born April 22, 1936) is an American country music singer, guitarist, television host and occasional actor. He is best known for a series of hits in the 1960s and 1970s, as well as for hosting a variety show called The Glen Campbell Goodtime Hour on CBS television.

During his 50 years in show business, Campbell has released more than 70 albums. He has sold 45 million records and accumulated no less than 12 RIAA Gold albums, 4 Platinum albums and 1 Double-Platinum album. Of the 74 trips up the country charts, 27 landed in the Top 10.^{[citation needed]} Campbell's hits include John Hartford's "Gentle on My Mind", Jimmy Webb's "By the Time I Get to Phoenix", "Wichita Lineman" and "Galveston", Larry Weiss's "Rhinestone Cowboy" and Allen Toussaint's "Southern Nights".

Campbell made history by winning four Grammys in both country and pop categories in 1967.^{[citation needed]} For "Gentle on My Mind" he received two awards in country & western, "By the Time I Get to Phoenix" did the same in pop. He owns trophies for Male Vocalist of the Year from both the Country Music Association (CMA) and the Academy of Country Music (ACM), and took the CMA's top honor as 1968 Entertainer of the Year. In 1969 Campbell was hand picked by actor John Wayne to play alongside him in the film True Grit, which gave Campbell a Golden Globe nomination for Most Promising Newcomer. Campbell sang the title song which was nominated for an Academy Award.

Glen Weston Perkins (born March 2, 1983 in Stillwater, Minnesota) is a Major League Baseball relief pitcher for the Minnesota Twins. He made his major league debut with the Minnesota Twins in 2006. Perkins attended the University of Minnesota in Minneapolis-St. Paul and Stillwater Area High School in Oak Park Heights. Perkins earned his first Major league win on May 20, 2008, against the Texas Rangers.

Perkins played his college ball for the Minnesota Golden Gophers in 2003 and 2004. With the Gophers in 2003, he went 10-2 and posted a 2.91 ERA with 117 strikeouts. In his 2004 season with the Gophers, he went 9-3 and posted a 2.83 ERA with 113 strikeouts. Perkins was drafted by the Minnesota Twins in the 1st round of the 2004 Major League Baseball Draft, being picked 22nd overall.

Between the years of 2004-2008, Perkins played most of his games for the Minnesota Twins minor league system. He pitched for the Elizabethton Twins, Quad City Swing, Fort Myers Miracle, Gulf Coast Twins, New Britain Rock Cats, and the AAA Rochester Red Wings.In his three seasons with Minnesota Twins minor league teams, he pitched 386.2 innings, posting a 16-22 record with a 3.50 ERA and 380 strikeouts. He was ranked number 66 in Baseball America's Top 100 Prospects.