武吉知马（马来文：Bukit Timah）是位于新加坡主岛中心附近的一座丘陵，海拔163.63米，为新加坡的最高点。

武吉知马所处的四周是市区重建局（Urban Redevelopment Authority）管辖下的武吉知马规划区 （Bukit Timah Planning Area），属于新加坡中区，距离市区的中央商业区只有10公里（6英里）。武吉知马规划区一般称作武吉知马，也有称它为第11邮区（District 11）。

这个地区有为数不少的洋房（独立式洋房或半独立式洋房）和私人公寓（相对于大多数新加坡人所住的公共组屋）。

Bukit Timah (Chinese:武吉知马, Tamil:புக்கித் திமா), often abbreviated as Bt. Timah, is a planning area and residential estate located in the Central Region of Singapore. Bukit Timah lies roughly 10 kilometres (6.2 mi) from the Central Business District, bordering the Central Water Catchment to the north, Bukit Panjang to the north-west, Queenstown to the south, Tanglin to the south-east, Clementi to the south-west, Novena to the east and Bukit Batok to the west.