Surname Глэдвин (Gladwyn 
, Глэдвин 
) , all around the world, is a rare cognomen. The last name Глэдвин is habitual in Isle of Man, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and New Zealand. In absolute terms, it is commonest in the United Kingdom, India, and the United States. More prevalently, Глэдвин is the forename as well as the last name.