Bob Mosley (born James Robert Mosley; December 4, 1942 in Paradise Valley, California) is principally known as the bass player and one of the songwriters and vocalists for the band Moby Grape. He has also developed a career as a solo artist. Some of his best known songs with Moby Grape are "Mr. Blues", "Come In The Morning", and "Lazy Me" from the first Moby Grape album (1967), "Bitter Wind", from Wow/Grape Jam (1968) and "Gypsy Wedding", from 20 Granite Creek (1971).