Cognomen אודאי (Uday 
, אודאי 
) , throughout the world, is a common family name. The last name אודאי is characteristic of Israel, where it is quite a rare surname, Nepal, and Qatar. Measured by absolute frequency, this name is the most popular in Southern Asia, particularly India, Bangladesh, and Nepal. Much more frequently, אודאי is the forename as well as the last name.