Kais vs Theodor
Kais 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 2025, Kais was ranked #1307 and Theodor #606 among boys in England and Wales.
Kais and Theodor over time
Kais and Theodor appear together in 1 published list, across 26 years of shared records. Theodor held the stronger position in more years in 1 of them, Kais 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.
Theodor reached its own highest recorded position earlier in 1 of those lists, and Kais 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
Kais and Theodor changed places 5 times in England and Wales · Boys between 1996 and 2025, ending at #1307 and #606.
List by list
England and Wales · Boys26 shared years, 1996–2025
Kais held the stronger position in 4 of those years, Theodor in 22.
Highest recorded here: Kais #1307 in 2025, Theodor #514 in 2021.
The order changed in 2007: Theodor moved ahead. In 2006 they stood at #1892 and #2870; by 2007 that had become #3095 and #1440.
Most recent shared year, 2025: Kais #1307, Theodor #606.
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
- 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
Side by side
| Field | Kais | Theodor |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | male | 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 | 1 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW | GB-ENW, GB-NIR, GB-SCT, IE, NO |
| Most recent popularity observation | England and Wales · Boys #1307 (2025) | Norway · Boys #11 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 95/100 | 82/100 |
| International familiarity (demonstration score) | 40/100 | 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); Kais does not have one recorded yet.
- Kais has 1 syllable, compared with 2 for Theodor.
- A meaning is recorded for Theodor; Kais doesn't have one written yet.
- Both names have recorded usage in GB-ENW.
How each name got here
Kais
Popularity journey
First recorded1996
First recorded at #2020 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 recorded1996–2025
Highest recorded position: #1307 among boys in England and Wales, in 2025 (recorded 1996–2025).
England and Wales · Boys
Most recent2025
Most recently recorded at #1307 among boys in England and Wales, in 2025.
England and Wales · Boys
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 #606 among boys in England and Wales, in 2025.
England and Wales · Boys