Sitoh Yih Pin

Sitoh Yih Pin (; born 2 December 1963) is a Singaporean diplomat and retired politician who currently serves as Singapore's Non-Resident High Commissioner to the Maldives. A member of the governing People's Action Party (PAP), he was the Member of Parliament (MP) for Potong Pasir Single Member Constituency (SMC) between 2011 and 2025. Chiam's wife, in the 2011 general election, after her husband left to contest Bishan–Toa Payoh Group Representation Constituency (GRC).

Political career Sitoh made his political debut during the 2001 general election as the PAP candidate for Potong Pasir SMC; he won 47.57% of the vote, being defeated by Chiam, who was standing under the banner of the newly created Singapore Democratic Alliance (SDA), comprising his Singapore People's Party (SPP) and three other parties.

Sitoh challenged Chiam again in Potong Pasir SMC during the 2006 general election, losing for the second time in a row with a decreased 44.18% of the vote. At that election, in a PAP strategy to reclaim the two opposition constituencies of Potong Pasir and Hougang (both SMCs), Senior Minister Goh Chok Tong had promised to help a victorious Sitoh gain a post in the new Cabinet, on top of extra latitude when speaking and voting in Parliament and not being subjected to the PAP whip.

On 28 February 2011, prior to the general election in the same year, the SDA removed Chiam from his position as chairperson of the coalition. Subsequently, on 2 March, Chiam announced that he would withdraw the SPP from the SDA. In January 2017, he was co-opted into the PAP's Central Executive Committee (CEC).

In the 2020 general election, Sitoh won reelection with 60.67% of the vote against newcomer Jose Raymond from the SPP.

On 16 April 2025, prior to the general election in the same year, Sitoh announced his retirement from electoral politics; he was replaced by Alex Yeo, former PAP candidate for Aljunied GRC, held by the Workers' Party (WP), and unelected branch chairperson for its Paya Lebar division.

Following his retirement from politics, Sitoh was appointed Non-Resident High Commissioner to the Maldives on 21 July 2026.

Other appointments Sitoh held executive and non-executive directorships on the boards of several companies, including Lian Beng Group, United Food Holdings, TalkMed Group and ISEC Healthcare.