Martie Maguire is an American musician who is a founding member of the female alternative country band, Dixie Chicks. She won awards in national fiddle championships while still a teenager. Maguire is accomplished on several other instruments, including the mandolin, viola, double bass and guitar. She has written and co-written a number of the band's songs, some of which have become chart-topping hits. She also contributes her skills in vocal harmony and backing vocals, as well as orchestrating string arrangements for the band.
Maguire learned several instruments at a young age, honing her skills with her younger sister, Emily Robison and two schoolmates for over five years as a part of a touring bluegrass quartet while in high school. After graduation, the sisters forged an alliance with two other women they had met through the Dallas music scene, Laura Lynch and Robin Lynn Macy, forming a bluegrass and country music band, busking and touring the bluegrass festival circuits for six years. After the departure of Macy, and the replacement of Lynch with singer Natalie Maines, the band widened their musical repertoire and appearance.