Across the world, Seiden (Seiden 
, 塞登) is an extremely rare unisex first name. More prevalently, Seiden is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Seiden | Japan, Australia, United States, Canada, Israel |
| morton i. seiden (b. 1921) |
|
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| lewis seiden American pharmacologist, US (b. 1934) |
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