The quintessence of the supremacy of the constitution according to Dicey lies in the constitution (1) being written, (2) being rigid, and (3) providing for judicial review. This article examines the existence of these criteria in the constitution of Singapore. As relevant local case law is very limited, an effort is made to interpret the provisions of the constitution, mostly in the context of the experience inn the working of the pertinent provisions of the constitution of India and Malaysia, which are germane to the constitution of Singapore.