Robert Harry Kuykendall also known as Bobby Dall (born November 2, 1958 in Harrisburg, Pennsylvania) is best known as the bass player from American glam metal band Poison.

Dall is the youngest of three children. He moved to Florida with his family for a short time, but returned to Harrisburg when Dall was still young.

Dall had ambitions of studying law, but ultimately turned to music instead. He began playing guitar but switched to bass at the age of 15. Dall later moved to Los Angeles, California with Bret Michaels, Rikki Rockett and Matt Smith to play with the band Paris, later to become Poison.