In-soo, also spelled In-su, is a Korean unisex given name, predominantly male.
The meaning of the name differs based on the hanja used to write each syllable.
[1] There are 29 hanja with the reading "in" and 67 hanja with the reading "soo" on the South Korean government's official list of hanja which may be used in given names.
[2] People with this name include: