Ayer Rajah Single Member Constituency (Traditional Chinese: 亞逸拉惹單選區; Simplified Chinese: 亚逸拉惹单选区) is a former single member constituency in Singapore that existed since 1980 by crafting this portion from the then Bukit Timah SMC; Ayer Rajah SMC was made up of Pandan Gardens estate, Teban Gardens estate, parts of Jurong East New Town and Clementi West New Town. It existed until 2006 when the then incumbent MP Tan Cheng Bock retired from politics, it was then absorbed into the West Coast GRC. He then became a presidential candidate in 2011.
Constituency abolished (2006 - present)