Kapitan China Yap Ah Shak (Chinese: 葉亞石; pinyin: Yè Yǎshí; Jyutping: Jip6 Aa3 Sek6; Pe̍h-ōe-jī: Ia̍p A-se̍k; Pha̍k-fa-sṳ: Ya̍p Â-sa̍k) of Petaling served as the fourth and penultimate Kapitan China of nineteenth-century Kuala Lumpur.
[1][2][3] Yap Ah Shak was selected by Wong Ying, a prosperous Cantonese miner and several others to take over from Kapitan China Shin (Sheng Ming Li) of Sungai Ujong six months after the disturbances there had died down.
[4] The late Kapitan Shin was slain in the 1860 uprising of the Chinese miners at Sungai Ujong attributed to excessive taxation by the local Malay chiefs.
[6][7] Yap Ah Shak moved from Sungai Ujong to Kuala Lumpur in 1870 and, even after passing on his title to Yap Ah Loy, continued to serve as magistrate for the settlement of Chinese disputes and as High Court Assessor.
[14][16] A street just outside the LRT Dang Wangi in the Medan Tuanku ward in downtown Kuala Lumpur is named after him.