Cognomen 智隆 (Zhilong 
, 智隆 ) , in the world, is a rare surname. The surname 智隆 is habitual in Hong Kong, where it is a rare surname, Singapore, and Malaysia, where it is a very rare surname. Measured by absolute frequency, the name is most common in China, Hong Kong, and Malaysia. Much more prevalently, 智隆 is the forename as well as the last name.