Male name
Jeff
150 births (England and Wales, 1996–2025), peaking in 2010. Expression number: 9.
Origin
From Jeffrey, a variant of Geoffrey, from Middle English Geffrey, from an Old French aristocratic name, Geoffroi [dʒɔfreʲ] (> West Middle French Geoffrey, East Middle French Geoffroy), itself from Proto-French forms (latinized in -us) Jotfredus, Jozsfredus, Josfredus (10th century) and Jof[f]redus, Jofridus, Jaufredus, Geffredus (11th century), and ultimately of Proto-Germanic origin. The second element is *friþuz (“peace, sanctuary”). The first element may be *gautaz (“a Geat, a Goth”) [making the Proto-Germanic term *Gautafriþu], as opposed to *gōdaz (“good”) or *gudą (“god”) in Godfrey; this would also make it related to Jocelyn. The name was introduced to England by the Normans in the 11th century.From Wiktionary, entry “Jeff”, 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 2010: 17 births. 150 births from 1996 to 2025. A name given mostly in the 1990s, 2000s and 2010s. Fewer than ten births recorded 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 1961: 9,474 births. 120,502 births from 1880 to 2025. A name given mostly in the 1950s and 1960s. At its peak, it ranked 44th among boys' names in 1962. It is still given: 215 births from 2021 to 2025.
Source: Social Security Administration, Popular Baby Names, public domain.
In Ireland
Peak in 1997: 12 births. 132 births from 1964 to 2025. A name given mostly in the 1990s, 2000s and 2010s. Fewer than ten births recorded from 2021 to 2025.
Source: Central Statistics Office, Irish Babies' Names, CC BY 4.0.
Elsewhere in the world
The name in the birth records of the 10 countries we track. The period covered varies from country to country.
| Country | Births | Period | Best rank |
|---|---|---|---|
| France | 1,590 | 1900–2025 | — |
| Quebec | 973 | 1980–2025 | — |
Source: INSEE, Fichier des prénoms, Etalab Open Licence 2.0; Retraite Québec, Banque de prénoms, CC BY 4.0.
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.
9
humanity, generosity, completion
1 + 5 + 6 + 6 = 18 → 9
Soul
The vowels: what drives you deep down.
5
freedom, change, movement
5 = 5
Personality
The consonants: what others notice first.
4
work, structure, stability
1 + 6 + 6 = 13 → 4
- Digits missing from the name
- 2, 3, 4, 7, 8, 9
- Most frequent digit
- 6 · responsibility, harmony, commitment to others
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.