Si
17
Peak · 2010
2018
Last seen
14
Years on list
77
Total babies
Trajectory · 1996→2024
Years with no bar had fewer than 3 babies with this name — ONS suppresses counts of 2 or fewer for privacy.
About the name Si
Si is a rare UK girl's name. In 2024, fewer than three girls were registered with this name in England & Wales — the threshold below which the ONS suppresses counts to protect family privacy. It was last on the published list in 2018.
Si reached its peak in 2010, when 17 girls were registered in England & Wales — ranked #1,653 for UK girls that year. Since then, registrations have dropped below the ONS reporting threshold of three babies per year.
Across 14 years of ONS data since 1996, a total of 77 girls have been officially registered with the name Si in England & Wales. In the past decade alone (2014–2024), 11 girls were registered with the name, starting from 5 in 2014 and ending at 0 in 2024.