Surname Seďa (Seďa 
) , in the world, is a very rare cognomen. The surname Seďa is habitual in Eastern Europe, particularly Czechia, where it is a rare surname.
| antonín seďa (b. 1937) |
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| antonín seďa Czech member of Czech Parliament (2002–2017) and local politician, CZ (b. 1960) |
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| jaromír seďa (b. 1958) |
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| petr seďa (b. 1976) |
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| radomír seďa CZ (b. 1978) |
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