Surname Самнер (Sumner 
, Samner 
, Самнер 
) , in all the world, is a common last name. The family name Самнер is characteristic of Bahamas, where it is quite a common surname, the United Kingdom, where it is quite a rare surname, and New Zealand. Measured by absolute frequency, the name is most common in the United States, the United Kingdom, and Australia. Very seldom, Самнер is the forename as well as the last name.