Jason vs Zac
Jason and Zaccompared 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.
New South Wales, Australia · Boys
In 2005, Jason was ranked #91 and Zac #80 among boys in New South Wales, Australia.
Republic of Ireland · Boys
In 2025, Jason was ranked #135 and Zac #223 among boys in Republic of Ireland.
Scotland · Boys
In 2024, Jason was ranked #199 and Zac #176 among boys in Scotland.
England and Wales · Boys
In 2024, Jason was ranked #197 and Zac #442 among boys in England and Wales.
Northern Ireland · Boys
In 2024, Jason was ranked #305 and Zac #216 among boys in Northern Ireland.
Jason and Zac over time
Jason and Zac appear together in 4 published lists, across 89 years of shared records. Jason held the stronger position in more years in 3 of them, Zac in 1.
The order between them changed and held in 2 of those lists — a change in that published list, never a claim that one name displaced the other.
Jason reached its own highest recorded position earlier in 4 of those lists, and Zac 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.
How this pair is related
The relationship kinds these two qualify for, each under its own stated rule. Every one is drawn from a list they both appear in.
- One moved ahead of the other
In 2009, Zac moved ahead of Jason in Northern Ireland · Boys — #118 and #128 the year before became #121 and #117.
- Repeatedly exchanged positions
Jason and Zac changed places 4 times in England and Wales · Boys between 1996 and 2024, ending at #197 and #442.
List by list
England and Wales · Boys29 shared years, 1996–2024
Jason held the stronger position in 21 of those years, Zac in 8.
Highest recorded here: Jason #69 in 1996, Zac #110 in 2010.
The order between them never changed and held in this list.
Most recent shared year, 2024: Jason #197, Zac #442.
Northern Ireland · Boys27 shared years, 1997–2024
Jason held the stronger position in 11 of those years, Zac in 14.
Highest recorded here: Jason #42 in 1997, Zac #88 in 2010.
The order changed in 2009: Zac moved ahead. In 2008 they stood at #118 and #128; by 2009 that had become #121 and #117.
Most recent shared year, 2024: Jason #305, Zac #216.
Republic of Ireland · Boys25 shared years, 2001–2025
Jason held the stronger position in 25 of those years, Zac in 0.
Highest recorded here: Jason #37 in 2002, Zac #179 in 2019.
The order between them never changed and held in this list.
Most recent shared year, 2025: Jason #135, Zac #223.
New South Wales, Australia · Boys8 shared years, 1998–2005
Jason held the stronger position in 6 of those years, Zac in 2.
Highest recorded here: Jason #48 in 1998, Zac #65 in 2002.
The order changed in 2004: Zac moved ahead. In 2003 they stood at #77 and #81; by 2004 that had become #79 and #66.
Most recent shared year, 2005: Jason #91, Zac #80.
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.
Side by side
| Field | Jason | Zac |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | male | male |
| Meaning | From Ancient Greek Iason, meaning 'healer'. In Greek mythology, Jason led the Argonauts in the quest for the Golden Fleece; the name also appears in the New Testament as a Hellenized form possibly of a Hebrew name. | Not yet recorded |
| Origin | Greek | Not yet recorded |
| Pronunciation | /ˈd͡ʒeɪ.sən/ | 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 | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ |
| Most recent popularity observation | Republic of Ireland · Boys #135 (2025) | Republic of Ireland · Boys #223 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | Not yet recorded |
| Spelling simplicity (demonstration score) | 94/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Jason has a recorded origin (Greek); Zac does not have one recorded yet.
- Jason has 2 syllables, compared with 1 for Zac.
- A meaning is recorded for Jason; Zac doesn't have one written yet.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ.
How each name got here
Jason
Popularity journey
First recorded1964
First recorded at #100 among boys in New South Wales, Australia in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New South Wales, Australia · Boys
Highest recorded1964–2005
Highest recorded position: #1 among boys in New South Wales, Australia, in 1971 (recorded 1964–2005).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #135 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys
Zac
Popularity journey
First recorded1996
First recorded at #276 among boys in England and Wales in 1996 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Boys
Highest recorded1998–2012
Highest recorded position: #65 among boys in New South Wales, Australia, in 2002 (recorded 1998–2012).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #223 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys