Siar is a very rare boys' name that has climbed to its highest level yet, peaking in 2021.
Siar is a boy name. In 2025 it ranked #6,745 for boy births in the United States (and #14,196 across all names), given to 13 babies. Siar was first reported in SSA data in 2019 and peaked in 2021 (17 births).
Boys named Siar per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 2019–2025 · U.S.+territories from SSA territory files (1998–2025) · SSA publishes a name only in years it was given to at least 5 babies, so a name may have been in use before — or between — the years shown here