Dudley Shelton Senanayake (Sinhala:ඩඩ්ලි ශෙල්ටන් සේනානායක|Tamil:டட்லி சேனநாயக்கா); 19 June 1911 – 13 April 1973) was a Ceylonese (now Sri Lanka) politician, who became the second Prime Minister of Ceylon and went on to become prime minister on three more times during the 1950s and 1960s.