Fionntan vs Theodore

Fionntan and Theodorecompared 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.

Northern Ireland · Boys
In 2023, Fionntan was ranked #395 and Theodore #47 among boys in Northern Ireland.
England and Wales · Boys
In 2003, Fionntan was ranked #3467 and Theodore #165 among boys in England and Wales.

Fionntan and Theodore over time

Fionntan and Theodore appear together in 1 published list, across 16 years of shared records. Theodore held the stronger position in more years in 1 of them, Fionntan 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.

Fionntan reached its own highest recorded position earlier in 1 of those lists, and Theodore 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 2014, Theodore moved ahead of Fionntan in Northern Ireland · Boys — #271 and #343 the year before became #346 and #184.

List by list

Northern Ireland · Boys16 shared years, 2001–2023
Fionntan held the stronger position in 5 of those years, Theodore in 10.
Highest recorded here: Fionntan #173 in 2001, Theodore #47 in 2023.
The order changed in 2014: Theodore moved ahead. In 2013 they stood at #271 and #343; by 2014 that had become #346 and #184.
Most recent shared year, 2023: Fionntan #395, Theodore #47.

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 Theodore

Pairs where Theodore shares a published list with another name, each measured inside one registrar's own list.

Theodore vs Elijah
Theodore and Elijah both rose over the same years in 5 registrars — England and Wales · Boys; New South Wales, Australia · Boys; New Zealand · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Theodore · Elijah · 30 shared years, 1996–2025 · Moved together in several countries
Theodore vs Hugo
Theodore and Hugo both rose over the same years in 5 registrars — England and Wales · Boys; New South Wales, Australia · Boys; New Zealand · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Theodore · Hugo · 31 shared years, 1992–2025 · Moved together in several countries
Leo vs Theodore
Leo and Theodore both rose over the same years in 5 registrars — England and Wales · Boys; New South Wales, Australia · Boys; New Zealand · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Leo · Theodore · 33 shared years, 1964–2025 · Moved together in several countries
Luca vs Theodore
Luca and Theodore both rose over the same years in 5 registrars — England and Wales · Boys; New South Wales, Australia · Boys; New Zealand · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Luca · Theodore · 30 shared years, 1996–2025 · Moved together in several countries

Side by side

Side-by-side comparison of Fionntan, Theodore
Field	Fionntan	Theodore
Record type	Official statistical record (evidence-only)	Editorially researched profile
Gender usage	male	male
Meaning	Not yet recorded	Gift of God.
Origin	Not yet recorded	Greek
Pronunciation	Not yet recorded	/ˈθiəˌdɔɹ/
Syllables	2	3
Common variants / nicknames	Not yet recorded	Teddy
Recorded regional usage	GB-ENW, GB-NIR, IE	AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ
Most recent popularity observation	Northern Ireland · Boys #395 (2023)	New South Wales, Australia · Boys #3 (2025)
Pronunciation clarity (demonstration score)	Not yet recorded	90/100
Spelling simplicity (demonstration score)	76/100	76/100
International familiarity (demonstration score)	100/100	100/100
Data Confidence	medium	high

What the data shows

Theodore has a recorded origin (Greek); Fionntan does not have one recorded yet.
Fionntan has 2 syllables, compared with 3 for Theodore.
A meaning is recorded for Theodore; Fionntan doesn't have one written yet.
Both names have recorded usage in GB-ENW, GB-NIR, IE.
The available evidence gives Fionntan a "medium" Data Confidence level and Theodore a "high" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.

How each name got here

Fionntan

Popularity journey

First recorded1997
First recorded at #210 among boys in Northern Ireland in 1997 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Northern Ireland · Boys
Highest recorded1997–2023
Highest recorded position: #167 among boys in Northern Ireland, in 2002 (recorded 1997–2023).
Northern Ireland · Boys
Most recent2023
Most recently recorded at #395 among boys in Northern Ireland, in 2023.
Northern Ireland · Boys

Theodore

Popularity journey

First recorded1964
First recorded at #214 among boys in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded2015–2025
Highest recorded position: #3 among boys in New South Wales, Australia, in 2024 (recorded 2015–2025).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #3 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys