James Robert "Bob" Mosley (born December 4, 1942) is an American musician principally known as the bass player and one of the songwriters and vocalists for the band Moby Grape. 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), and "Gypsy Wedding" from the 20 Granite Creek (1971) album.
