Greg T. Walker (born 8 July 1951) is an American bassist who played with rock band Lynyrd Skynyrd between 1971 and 1972.

In the classic line-up of the band, he played with Rickey Medlocke as frontman, Charlie Hargrett as second guitarist, and Jakson T. Spires on drums.

Besides playing the bass, he also ensures the backing vocals together with drummer Jakson T. Spires.

In 2014 he recorded a 5-song EP with French rock trio Lloyd Project and played a couple of concerts in Paris along with the band.

When not touring or recording, his time is spent in Florida, where he pursues his passion of raising and riding horses.