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