Air Chief Marshal Shashindra Pal Tyagi (born 14 March 1945), more commonly known as S P Tyagi, is the former Chief of the Air Staff of the Indian Air Force. Prior to becoming chief of Indian Air Force, he was commanding the Western Air Command of the Air Force. He was commissioned in the fighter stream of the IAF on December 31, 1963. He is said to have "actively participated" in the 1965 and 1971 wars. He is married to Mrs. Vandana Tyagi and they have a son and a daughter.