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.
The fourth Parliament had eight changes throughout the term, with a series of four by-elections ensuing in 1977 and 1979, making it one of the largest change of Parliament's composition since the vacation of Barisan Sosialis during the first Parliament.
This is the list of members of the 4th Parliament of Singapore elected in the 1977 general election.