How popular is the name Si in 2025?

Si is rarely given in the US today — it does not rank in the top 2000 girl names.

When was the name Si most popular?

Si peaked in 2011, reaching #12153 among US girl names.

Si will almost certainly be the only one in school.

girl name

Si entered the US charts in 2006, peaked at #12153 in 2011, is rarely given today — a rare gem few children share.

—

rank today

#12153

peak (2011)

babies in 2025

rare

a rare gem few children share

Decade	Average rank
2000s	#16394
2010s	#12153

Fewer than a hundred people named Si are estimated to be alive in the US today — a true one-of-a-kind name.

The typical Si alive today was born around 2007, making them about 18 years old.

Estimated from official SSA birth records and life tables.

How popular is the name Si in 2025?: Si is rarely given in the US today — it does not rank in the top 2000 girl names.
When was the name Si most popular?: Si peaked in 2011, reaching #12153 among US girl names.
Will my child share the name Si with classmates?: Si will almost certainly be the only one in school.

Put them head to head — full stats, history and a verdict.