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Cognomen Simno (Simno
, สิมโน
) , in all the world, is a very rare surname. The family name Simno is characteristic of Thailand, where it is a very rare surname, New Zealand, and the United States, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Thailand, the United States, and Nigeria. Likewise, Simno is the forename as well as the last name.