Langhorne Slim is an American singer-songwriter, (born Sean Scolnick on August 20, 1980 in Langhorne, Pennsylvania). Scolnick attended high school at The Solebury School in New Hope, Pennsylvania, and graduated from the Conservatory of Music at Purchase College, part of the SUNY system.

He began to gain public notice through several years of touring with the Trachtenburg Family Slideshow Players and an appearance at the Bonnaroo Music Festival. His song "Electric Love Letter" was chosen as number 5 on the Rolling Stone editor's top ten picks and was also in the movie Waitress. He has been seen on tours with Cake, The Avett Brothers, Murder By Death, Jeffrey Lewis, The Violent Femmes, Lucero, Rocky Votolato, the Woes, Josh Ritter, Drive-By Truckers, and The Low Anthem.

In 2006, Langhorne Slim and the War Eagles signed to V2 Records for one EP and an LP. The deal was dropped after the release of the Engine EP in 2006, and the band signed to Kemado Records, and released a self-titled album on April 29, 2008. Slim performed the first single from the album, "Restless", on the Late Show with David Letterman in March 2008. Following the release, Slim toured the US and Europe. In the summer of 2009, Langhorne Slim began playing larger venues including the Newport Folk Festival, Bristol Rhythm & Roots Reunion, Lollapalooza, and the Philadelphia Folk Festival. The album Be Set Free was released on September 29, 2009.

On August 9, 2009, Langhorne Slim sang "God Bless America" during the seventh inning stretch during a Philadelphia Phillies-Florida Marlins game at Citizens Bank Park as WXPN's Artist to Watch and has twice been featured on the station's live at noon concert series.

The song "Worries" from his self titled album is featured in a Travelers Insurance commercial which was launched on October 9, 2009.

Langhorne Slim's band consists of Jeff Ratner on up-right bass, Malachi DeLorenzo on drums and David Moore on keyboard and banjo.

Langhorne Slim is a featured artist on Season 2 of "Sun Studio Sessions," distributed nationally to PBS affiliate stations.