potong pasir single member constituency (; ; ) is a single member constituency (smc) in the central region of singapore. established in 1968, this constituency encompasses the town of potong pasir, blocks 210 to 224 of lorong 8 toa payoh, the sennett and tannery private estates, as well as the alkaff neighborhood of the upcoming bidadari estate. the people's action party (pap)'s sitoh yih pin has been the member of parliament (mp) for potong pasir smc since 2011. it was carved out of aljunied in 1968.