Il is a Korean given name and name element.
Its meaning differs based on the hanja used to write it.
There are ten hanja with this reading on the South Korean government's official list of hanja which may be registered for use in given names; they are:[1] People with the single-syllable given name Il include: One name containing this element, Il-sung, was a popular name in Korea in the 1940s, according to South Korean government data.
[2] Other names containing this element include: