Alex vs Sia
Alex and Siacompared on official birth-registration statistics and Namewise's recorded data. This page states what each name's record shows — it never picks a winner or scores one name against the other.
Head to head
Ranks are only compared within one published list and one year. Two ranks from different years, from a boys' and a girls' list, or from different registrars are not comparable, so they are not placed side by side.
Republic of Ireland · Girls
In 2025, Alex was ranked #304 and Sia #544 among girls in Republic of Ireland.
Northern Ireland · Girls
In 2023, Alex was ranked #391 and Sia #391 among girls in Northern Ireland.
England and Wales · Girls
In 2024, Alex was ranked #2253 and Sia #565 among girls in England and Wales.
Alex and Sia over time
Alex and Sia appear together in 1 published list, across 26 years of shared records. Alex held the stronger position in more years in 1 of them, Sia in 0.
The order between them changed and held in one of those lists — a change in that published list, never a claim that one name displaced the other.
Alex reached its own highest recorded position earlier in 1 of those lists, and Sia in none. Each position is a place inside its own list, so this compares when they peaked and never how high.
Counted list by list. Two names in the same published list are measured on the same scale in the same year, so those comparisons are real — but positions from different lists are not, so nothing here is combined into an overall standing.
List by list
England and Wales · Girls26 shared years, 1997–2024
Alex held the stronger position in 15 of those years, Sia in 11.
Highest recorded here: Alex #172 in 2001, Sia #480 in 2017.
The order changed in 2014: Sia moved ahead. In 2013 they stood at #882 and #959; by 2014 that had become #1177 and #842.
Most recent shared year, 2024: Alex #2253, Sia #565.
Two names moving past each other in a ranking is a fact about the ranking. Namewise does not claim one name displaced the other, that families chose between them, or that either influenced the other — none of that is in this data.
Where to go next
Comparisons that share a name, a rule or a published list with this one. Each is an existing comparison page with its own evidence — nothing here says these pairs are alike.
Other comparisons involving Alex
Pairs where Alex shares a published list with another name, each measured inside one registrar's own list.
- Alex vs Scott
In 1996 they stood at #43 and #48 in England and Wales · Boys, 5 places apart; by 2024 they were #171 and #1025.
Alex · Scott · 29 shared years, 1996–2024 · Started together, ended far apart
- Alex vs Ashley
In 1996 they stood at #43 and #40 in England and Wales · Boys, 3 places apart; by 2024 they were #171 and #880.
Alex · Ashley · 29 shared years, 1996–2024 · Started together, ended far apart
- Alex vs Marcus
Over 53 shared years in Republic of Ireland · Boys, Alex rose about as far as Marcus fell — from #279 and #99 in 1972 to #37 and #232 in 2025.
Alex · Marcus · 53 shared years, 1972–2025 · Mirrored each other
- Alex vs Ronan
Over 53 shared years in Republic of Ireland · Boys, Alex rose about as far as Ronan fell — from #279 and #46 in 1972 to #37 and #86 in 2025.
Alex · Ronan · 53 shared years, 1972–2025 · Mirrored each other
Side by side
| Field | Alex | Sia |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | male | female |
| Meaning | A short form of Alexander, Alexandra and other names beginning with 'Alex' — from Greek elements meaning 'defender' and 'man/people'. | Not yet recorded |
| Origin | Greek, short form | Not yet recorded |
| Pronunciation | /ˈæl.ɪks/ | Not yet recorded |
| Syllables | 2 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ | GB-ENW, GB-NIR, IE |
| Most recent popularity observation | Republic of Ireland · Boys #37 (2025) | Republic of Ireland · Girls #544 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | Not yet recorded |
| Spelling simplicity (demonstration score) | 95/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Alex has a recorded origin (Greek, short form); Sia does not have one recorded yet.
- Alex has 2 syllables, compared with 1 for Sia.
- A meaning is recorded for Alex; Sia doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, IE.
How each name got here
Alex
Popularity journey
First recorded1954
First recorded at #346 among boys in Norway in 1954 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1972–2025
Highest recorded position: #8 among boys in Republic of Ireland, in 2009 (recorded 1972–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #259 among boys in Norway, in 2025.
Norway · Boys
Sia
Popularity journey
First recorded1997
First recorded at #2738 among girls in England and Wales in 1997 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Girls
Most recent2025
Most recently recorded at #544 among girls in Republic of Ireland, in 2025.
Republic of Ireland · Girls