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Family name Quay (Quay
, 奎伊
, クワイ
) , around the globe, is quite a rare last name. The family name Quay is habitual in Trinidad and Tobago, where it is quite a rare surname, Singapore, and Malaysia. Measured by absolute frequency, the name is most common in the United States, Malaysia, and France. Very seldom, Quay is the forename as well as the last name.