Theobald Walter or Theobald Butler or Theobald Walter le Boteler was the first Baron Butler and the first Chief Butler of Ireland. He also held the office of Butler of England and was the High Sheriff of Lancashire for 1194. Theobald was the ancestor of the Butler family of Ireland. He was involved in the Irish campaigns of King Henry II of England and John of England. His eldest brother Hubert Walter became the Archbishop of Canterbury and justiciar and Lord Chancellor of England.
Theobald was the son of Hervey Walter and his wife Maud de Valoignes, who was one of the daughters of Theobald de Valoignes. Their children were Theobald, Hubert - future Chief Justiciar and Archbishop of Canterbury, Walter, Roger and Hamon. Theobald Walter was brought up, along with his brother Hubert (the future Archbishop of Canterbury), by his uncle Ranulf de Glanvill, the great justiciar of Henry II who had married his mother's sister Bertha.
Theobald's father had been the hereditary holder of the office of butler of England.