Last name באדלי (Baddeley 
, באדלי 
, Badelj 
) , all over the world, is quite a rare family name. The family name באדלי is habitual in Guernsey, where it is quite a common surname, the United Kingdom, where it is quite a rare surname, and Malta. Measured by absolute frequency, it is commonest in the United Kingdom, the United States, and Australia.