Calum vs Jason
Calum and Jasoncompared 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 · Boys
In 2025, Calum was ranked #432 and Jason #135 among boys in Republic of Ireland.
Scotland · Boys
In 2024, Calum was ranked #176 and Jason #199 among boys in Scotland.
England and Wales · Boys
In 2024, Calum was ranked #1675 and Jason #197 among boys in England and Wales.
Northern Ireland · Boys
In 2024, Calum was ranked #339 and Jason #305 among boys in Northern Ireland.
Calum and Jason over time
Calum and Jason appear together in 3 published lists, across 90 years of shared records. Jason held the stronger position in more years in 3 of them, Calum in 0.
In none of those lists did their order change and stay changed.
Jason reached its own highest recorded position earlier in 2 of those lists, and Calum 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.
- Repeatedly exchanged positions
Calum and Jason changed places 8 times in Northern Ireland · Boys between 1997 and 2024, ending at #339 and #305.
- Closest over the longest run
Across 27 shared years in Northern Ireland · Boys, Calum and Jason averaged 48.3 places apart, ending at #339 and #305.
- Longest-running competitions
Calum and Jason were both ranked in Republic of Ireland · Boys for 34 years, from 1992 to 2025, ending at #432 and #135.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Boys within 2 years — Calum #91 in 1996, Jason #69 in 1996.
List by list
Republic of Ireland · Boys34 shared years, 1992–2025
Calum held the stronger position in 3 of those years, Jason in 31.
Highest recorded here: Calum #44 in 2006, Jason #24 in 1994.
The order between them never changed and held in this list.
Most recent shared year, 2025: Calum #432, Jason #135.
England and Wales · Boys29 shared years, 1996–2024
Calum held the stronger position in 2 of those years, Jason in 27.
Highest recorded here: Calum #91 in 1996, Jason #69 in 1996.
The order between them never changed and held in this list.
Most recent shared year, 2024: Calum #1675, Jason #197.
Northern Ireland · Boys27 shared years, 1997–2024
Calum held the stronger position in 10 of those years, Jason in 16.
Highest recorded here: Calum #21 in 2006, Jason #36 in 1998.
The order between them never changed and held in this list.
Most recent shared year, 2024: Calum #339, Jason #305.
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 | Calum | Jason |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | male | male |
| Meaning | Not yet recorded | 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. |
| Origin | Not yet recorded | Greek |
| Pronunciation | Not yet recorded | /ˈd͡ʒeɪ.sən/ |
| Syllables | 2 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Republic of Ireland · Boys #432 (2025) | Republic of Ireland · Boys #135 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 94/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Jason has a recorded origin (Greek); Calum does not have one recorded yet.
- Calum and Jason both have 2 syllables.
- A meaning is recorded for Jason; Calum doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Calum
Popularity journey
First recorded1992
First recorded at #298 among boys in Republic of Ireland in 1992 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1997–2024
Highest recorded position: #21 among boys in Northern Ireland, in 2006 (recorded 1997–2024).
Northern Ireland · Boys
Most recent2025
Most recently recorded at #432 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys
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