Caelyn vs Dylan
Caelyn and Dylancompared 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.
England and Wales · Boys
In 2013, Caelyn was ranked #4685 and Dylan #31 among boys in England and Wales.
England and Wales · Girls
In 2017, Caelyn was ranked #5765 and Dylan #1995 among girls in England and Wales.
Caelyn and Dylan over time
Caelyn and Dylan appear together in 1 published list, across 12 years of shared records. Dylan held the stronger position in more years in 1 of them, Caelyn 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.
Dylan reached its own highest recorded position earlier in 1 of those lists, and Caelyn 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.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Girls within 2 years — Caelyn #3031 in 2009, Dylan #1516 in 2008.
List by list
England and Wales · Girls12 shared years, 2005–2017
Caelyn held the stronger position in 1 of those years, Dylan in 11.
Highest recorded here: Caelyn #3031 in 2009, Dylan #1516 in 2008.
The order changed in 2006: Dylan moved ahead. In 2005 they stood at #3382 and #3970; by 2006 that had become #5061 and #3548.
Most recent shared year, 2017: Caelyn #5765, Dylan #1995.
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 | Caelyn | Dylan |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | female | male |
| Meaning | Not yet recorded | Traditionally associated with the sea/tide — popularly glossed as 'great tide' or 'born from the sea', reflecting the mythological figure's role. Some scholars theorise the figure may reflect an earlier, otherwise unattested Celtic sea god — treat as a proposed origin, not settled fact. |
| Origin | Not yet recorded | Welsh |
| Pronunciation | Not yet recorded | /ˈdɪlən/ |
| Syllables | 2 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, IE | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ |
| Most recent popularity observation | Republic of Ireland · Girls #871 (2019) | Republic of Ireland · Boys #69 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 88/100 | 94/100 |
| International familiarity (demonstration score) | 60/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Dylan has a recorded origin (Welsh); Caelyn does not have one recorded yet.
- Caelyn and Dylan both have 2 syllables.
- A meaning is recorded for Dylan; Caelyn doesn't have one written yet.
- Both names have recorded usage in GB-ENW, IE.
How each name got here
Caelyn
Popularity journey
First recorded2005
First recorded at #3382 among girls in England and Wales in 2005 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Girls
Highest recorded2016–2019
Highest recorded position: #750 among girls in Republic of Ireland, in 2016 (recorded 2016–2019).
Republic of Ireland · Girls
Most recent2019
Most recently recorded at #871 among girls in Republic of Ireland, in 2019.
Republic of Ireland · Girls
Dylan
Popularity journey
First recorded1969
First recorded at #246 among boys in Republic of Ireland in 1969 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1980–2020
Highest recorded position: #7 among boys in New Zealand, in 1992 (recorded 1980–2020).
New Zealand · Boys
Most recent2025
Most recently recorded at #69 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys