Tanjong Pagar Single Member Constituency was a single member constituency (SMC) in Tanjong Pagar, Singapore.
It was one of the longest-surviving constituencies since the pre-independence era, and has been a People's Action Party stronghold.
Throughout its history, the seat was only held by the late Prime Minister Lee Kuan Yew, who held the longest political term in Parliament from 1955 to 2015.
After Lee Kuan Yew had passed the premiership to Goh Chok Tong in 1990, the constituency was even merged into Tanjong Pagar GRC, and the legacy of the "Tanjong Pagar GRC" name continues to remain even after the death of Lee Kuan Yew in 2015.
1988 was also the last election of which Tanjong Pagar was contested during Lee Kuan Yew's time, following which during the final 24 years of Lee Kuan Yew in Tanjong Pagar GRC, the constituency was declared as walkover.