Unknown; possibly a modern variation of Sincere or Cyre.
Siaire is a modern American name with no established etymological history. It is likely a creative coinage or a phonetic variation of names like Sincere or the Persian name Cyre. Due to its rarity, it lacks a traditional meaning but is often chosen for its unique sound and contemporary feel.
About 10 boys were named Siaire in 2025.
US births per 5-year period, 1990–present (SSA data).
