| Sia | Aditi | |
|---|---|---|
| Meaning | Form of Sita | boundless, limitless |
| Origin | Sanskrit | sanskrit |
| Gender | Girl | Girl |
| Pronunciation | SEE-ah | AH-dih-tee |
| Syllables | 2 | 3 |
| First appeared | 1968 | 1977 |
| Peak year | 2025 (215) | 2009 (221) |
| In 2025 | 215 | 63 |
| Trend | Near its peak | Declining |
Source: US Social Security Administration.
| Decade | Sia | Aditi |
|---|---|---|
| 2020s | 1,119 | 463 |
| 2010s | 1,026 | 1,407 |
| 2000s | 355 | 1,383 |
| 1990s | 121 | 298 |
| 1980s | 103 | 138 |
| 1970s | 57 | 23 |
| 1960s | 9 | 0 |
Sia is a short form of Sita, the devoted heroine of the Ramayana.
From Sanskrit aditi (अदिति), 'boundless, free, unlimited'. In the Vedas Aditi is the mother of the gods (Adityas) and goddess of the infinite sky. A goddess name.
Sia is more popular than Aditi today: about 215 US babies were given the name Sia in 2025, compared with 63 named Aditi.
Sia means Form of Sita (Sanskrit origin), while Aditi means boundless, limitless (sanskrit origin).
In US records, Sia first appears in 1968 and Aditi in 1977, so Sia has the longer recorded history.