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Surname Suchan (Suchan , สุชาญ , สุจันทร์ ) , in the entire world, is quite a rare last name. The cognomen Suchan is habitual in Eastern Europe, particularly Czechia, where it is quite a rare surname, Slovakia, and Poland. Measured by absolute frequency, this name is the most popular in Poland, Czechia, and Germany. Likewise, Suchan is the forename as well as the last name.