Surname וילו (Willow 
, וילו 
) , in the world, is quite a rare last name. The cognomen וילו is habitual in Israel, where it is quite a rare surname, Australia, where it is a rare surname, and New Zealand. In absolute terms, it is commonest in the United States, Australia, and the United Kingdom. More frequently, וילו is the forename as well as the last name.