Whittle Rock is a granite corestone reef and in False Bay, Western Cape, South Africa. The reef rises from a sandy bottom at about 40 m, to a minimum depth of 3.2 m, and is a well known fishing site and recreational diving area. It has an area of about 1 km2, and can affect the waves at the shore in Kalk Bay in special conditions of a long southeasterly swell. It is marked by a cardinal east buoy with sound and light signals.