Unisex name
Colby
2,573 births (England and Wales, 1996–2025), peaking in 2024. Expression number: 3.
Origin
From either the Old Norse personal name Koli or kol (“charcoal”) + býr (“settlement”).From Wiktionary, entry “Colby”, text under CC BY-SA 4.0.
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How many babies received it
From the official birth registers.
In England and Wales
Peak in 2024: 223 births. 2,573 births from 1996 to 2025. A name given mostly in the 2010s and 2020s. It is still given: 955 births from 2021 to 2025.
Source: Office for National Statistics, Baby names in England and Wales, Open Government Licence v3.0.
In the United States
Peak in 2001: 3,979 births. 58,155 births from 1880 to 2025. A name given mostly in the 1990s and 2000s. At its peak, it ranked 99th among boys' names in 2001. It is given to girls (7%) as well as boys (93%). It really came into use around 1948. It is still given: 2,577 births from 2021 to 2025.
Source: Social Security Administration, Popular Baby Names, public domain.
The numbers of the name
Each letter has a value: A = 1, B = 2… I = 9, then J = 1 again (Pythagorean method). We add them up, then reduce to a single digit, except 11, 22 and 33.
■ vowel · ■ consonant
Expression
All the letters: talents, the way you act.
3
expression, creativity, sociability
3 + 6 + 3 + 2 + 7 = 21 → 3
Soul
The vowels: what drives you deep down.
4
work, structure, stability
6 + 7 = 13 → 4
Personality
The consonants: what others notice first.
8
power, achievement, your relationship with money
3 + 3 + 2 = 8
- Digits missing from the name
- 1, 4, 5, 8, 9
- Most frequent digit
- 3 · expression, creativity, sociability
The meaning of the numbers comes from numerological tradition; it isn't a measure of your personality. A full portrait needs your first and middle names, your last name at birth, and your date of birth. How we calculate
Your name and theirs
The number of each name, and the number of the bond, which comes from adding them together. A symbolic game: what your two names say together, to be read as a metaphor, not as a verdict on your relationship.