Cognomen מיליגן (Milligan 
, מיליגן 
) , around the world, is a common surname. The last name מיליגן is characteristic of Northern Europe, particularly Isle of Man, where it is quite a common surname, Guernsey, and the United Kingdom, where it is quite a rare surname. Measured by absolute frequency, the name is most common in the United States, the United Kingdom, and Canada.