The 4th Parliament of Singapore was a meeting of the Parliament of Singapore. Its first session commenced on 7 February 1977 and was prorogued on 2 October 1978. It commenced its second session on 26 December 1978 and was dissolved on 5 December 1980. The members of the 4th Parliament were elected in the 1976 general election. Parliament was controlled by a People's Action Party majority, led by Prime Minister Lee Kuan Yew and his Cabinet. The Speaker was Dr Yeoh Ghim Seng.