Cognomen Jailo (Jailo 
, Жайло 
) , in the entire world, is a rare last name. The surname Jailo is habitual in Tanzania, where it is quite a rare surname, Philippines, where it is a very rare surname, and Kyrgyzstan. In absolute terms, it is commonest in Tanzania, Philippines, and Russia. Also, Jailo is the forename as well as the last name.