Alex Yam Ziming (; born 1981) is a Singaporean politician who has been serving as Mayor of North West District since 2020. A member of the governing People's Action Party (PAP), he has been the Member of Parliament (MP) representing the Yew Tee division of Marsiling–Yew Tee GRC since 2011. Yam was born in 1981 at Mount Alvernia Hospital to Yam Kah Heng and Lucy Yeo. He attended Maris Stella High School, Dunman High School and Victoria Junior College. He completed a master's degree in politics and international relations, concentrating on North Asian politics and communitarianism at the University of Kent in 2005. While he was at the University of Kent, he was elected to the Union Council, representing ethnic minorities and international students. He was also concurrently the co-president of the university chaplaincy. In 2000, Yam was awarded the National Volunteers Award by the Life Insurance Association of Singapore. From 2005 to 2006, he worked at the National University of Singapore. Yam joined the National Trades Union Congress in 2006 and was Head of Strategies & Planning and Head of Youth Lab while also serving with the Singapore Industrial & Services Employees' Union as a consultant. From 2006 to 2009, Yam served as secretary to Environment Minister Lim Swee Say in the Buona Vista Citizen's Consultative Committee and was also Chairman of the Youth Wing, having succeeded Liang Eng Hwa in both roles when Liang entered politics. He subsequently served in the Yew Tee Citizen's Consultative Committee and the Yew Tee Community Club Management Committee from 2009 to 2011 before standing for elections in Yew Tee to replace outgoing Member of Parliament Yeo Cheow Tong. Yam was previously secretary of the Young PAP general branch and executive committee member of the Young PAP EXCO. Yam was first sworn in as a Member of Parliament for Chua Chu Kang GRC on 7 May 2011, following the 2011 general election. In the 2015 general election, the Yew Tee division was redrawn into the new Marsiling–Yew Tee GRC.