Family name 도이 (Doi 
, 도이 
) , in the entire world, is a common surname. The family name 도이 is habitual in Myanmar, where it is quite a common surname, Malaysia, where it is quite a rare surname, and Israel, where it is a rare surname. Not in comparison with a country's population, the name is most common in Myanmar, India, and Brazil. Likewise, 도이 is the forename as well as the last name.