Garrett Charles Nash was born June 16, 1993, in Los Angeles, California.

[5] Nash is of English, Norwegian, German, Scottish, Irish, Swedish, and Lenape descent.

[citation needed] Before writing his own music, Nash started DJing when he was 13 years old until he began producing cover songs after college.

[1] In 2015, Gnash began to release a series of EPs about a previous breakup,[6] starting with U on March 15, 2015[7] and Me on December 15, 2015.

Gnash has cited Death Cab for Cutie, The Postal Service, Kanye West, and Jack Johnson as his musical influences.