Get information about the name Sidnei, including its hidden origins and meanings. Sol helps you discover the secret roots and significance of any name!.
The name SIDNEI derives from SIDNEY, and may have Portuguese or English origins.
From the English surname SIDNEY. It was first used as a given name in honour of executed politician Algernon Sidney (1622-1683). Another notable bearer of the surname was the poet and statesman Sir Philip Sidney (1554-1586).
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