Alvin "Youngblood" Hart (born 1963 in Oakland, California) is an American musician.

Influenced in early childhood by the Mississippi Country Blues performed by older relatives, Hart is known as one of the world's foremost practitioners of that genre. Hart is also known as a faithful torchbearer for the '60s & '70s guitar rock of his youth, as well as Western Swing and vintage Country. His music has been compared to a list of diverse artists ranging from Leadbelly, Spade Cooley to Led Zeppelin and Thin Lizzy.

Hart plays acoustic and electric guitars as well as banjo and sometimes mandolin. Bluesman Taj Mahal once said about Hart that "The boy has got thunder in his hands."

In 2003, Hart's album "Down in the Alley" was nominated for a Grammy award for Best Traditional Blues Album. In 2005, Hart received a Grammy Award for his contribution to "Beautiful Dreamer-The Songs of Stephen Foster.