Synai has been given to about 341 people in the United States since 1880. It was most common in 2008, which makes it a millennial-parent name.
Its best year was 2008, when 25 babies were given the name, ranking 5732nd. The typical living American called Synai is about 13 years old today. It is relatively most common in Florida, where it accounts for 0.00% of births.
Source: US Social Security Administration, national and state name files, 2025 release. Etymology researched and written by our editors. Living-population and median-age figures are our own estimates, described in the methodology.