Kacey vs Theodor

Kacey and Theodorcompared 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 2024, Kacey was ranked #2921 and Theodor #622 among boys in England and Wales.

Kacey and Theodor over time

Kacey and Theodor appear together in 1 published list, across 28 years of shared records. Theodor held the stronger position in more years in 1 of them, Kacey 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.

Kacey reached its own highest recorded position earlier in 1 of those lists, and Theodor 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.

Mirrored each other
Over 28 shared years in England and Wales · Boys, Theodor rose about as far as Kacey fell — from #1458 and #2863 in 1996 to #2921 and #622 in 2024.

List by list

England and Wales · Boys28 shared years, 1996–2024
Kacey held the stronger position in 13 of those years, Theodor in 14.
Highest recorded here: Kacey #1053 in 2007, Theodor #514 in 2021.
The order changed in 2010: Theodor moved ahead. In 2009 they stood at #2126 and #2544; by 2010 that had become #2199 and #1201.
Most recent shared year, 2024: Kacey #2921, Theodor #622.

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 Theodor

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

Theodor vs Kristoffer
In Norway · Boys, Theodor moved into the top 50 at #33 in 2010 as Kristoffer fell out of it to #55, having been #34 the year before.
Theodor · Kristoffer · 44 shared years, 1948–2025 · One took the other's place near the top
See the 2010 Norway ranking
Theodor vs Mats
In Norway · Boys, Theodor moved into the top 50 at #37 in 2006 as Mats fell out of it to #59, having been #40 the year before.
Theodor · Mats · 43 shared years, 1978–2025 · One took the other's place near the top
See the 2006 Norway ranking

Side by side

Side-by-side comparison of Kacey, Theodor
Field	Kacey	Theodor
Record type	Official statistical record (evidence-only)	Editorially researched profile
Gender usage	female	male
Meaning	Not yet recorded	The German form of Theodore, and a Scandinavian, Czech and Romanian variant of Teodor — from Greek 'theos' (god) and 'doron' (gift), 'gift of God'.
Origin	Not yet recorded	Greek roots, transmitted through German and Scandinavian naming traditions as a Teodor variant
Pronunciation	Not yet recorded	/ˈteː.o.doːɐ̯/
Syllables	2	2
Common variants / nicknames	Not yet recorded	Not yet recorded
Recorded regional usage	GB-ENW, GB-NIR, GB-SCT, IE	GB-ENW, GB-NIR, GB-SCT, IE, NO
Most recent popularity observation	Scotland · Girls #638 (2024)	Norway · Boys #11 (2025)
Pronunciation clarity (demonstration score)	Not yet recorded	90/100
Spelling simplicity (demonstration score)	94/100	82/100
International familiarity (demonstration score)	100/100	100/100
Data Confidence	medium	medium

What the data shows

Theodor has a recorded origin (Greek roots, transmitted through German and Scandinavian naming traditions as a Teodor variant); Kacey does not have one recorded yet.
Kacey and Theodor both have 2 syllables.
A meaning is recorded for Theodor; Kacey doesn't have one written yet.
Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.

How each name got here

Kacey

Popularity journey

First recorded1994
First recorded at #502 among girls in Republic of Ireland in 1994 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded2002–2019
Highest recorded position: #108 among girls in Northern Ireland, in 2003 (recorded 2002–2019).
Northern Ireland · Girls
Most recent2024
Most recently recorded at #2115 among girls in England and Wales, in 2024.
England and Wales · Girls

Theodor

Popularity journey

First recorded1948
First recorded at #363 among boys in Norway in 1948 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1948–2025
Highest recorded position: #8 among boys in Norway, in 2024 (recorded 1948–2025).
Norway · Boys
Most recent2025
Most recently recorded at #11 among boys in Norway, in 2025.
Norway · Boys