Diatom pop-illations from the River Kanching, Templer Park, Malaysia were investigated from ugust 13 to November 5,1991. The 97 taxa from 27 genera were recorded. Gomphon ema 7arolinense, G. clevei, G. acuminatum and G. longiceps were major diatoms in this river. The following four taxa are new record for Malaysia: Aulacoseira ambigua, A. subarctica, Anomoeoneis; erians var. apiculata and Navicula monmouthiana-stodderi var. monmouthiana-stodderi.