|Revised Romanization Deok-su|
|Hanja 德守, 德秀, 德銖, 德壽, 悳洙, and others|
Deok-su (pronounced [tʌk̚s͈u]), also spelled Deok-soo, Duk-soo, or Duck-soo, is a Korean masculine given name. Its meaning differs based on the hanja used to write each syllable of the name. There is one hanja with the reading "deok" (德, meaning "morality") and 67 hanja with the reading "su" on the South Korean government's official list of hanja which may be registered for use in given names.
People with this name include: