Francis Dominic Joseph Dallas (October 27, 1931 – July 22, 2007), also known as Frank "Sonny" Dallas, was an American jazz bassist and singer. Born in Rankin, Pennsylvania, Dallas studied bass with Herman Clements, principal bassist of the Pittsburgh Symphony, who also taught jazz bassists Ray Brown and Paul Chambers, and by the mid 1950s, was working with bandleaders Charlie Spivak, Ray Eberle, and Claude Thornhill. Moving to Long Island in the late 1960s, he obtained a Master of Arts degree in music education and began teaching at both Suffolk County Community College and Dowling College.