Zo

#14,926 in 2025UnisexGirls' nameBoys' name

Life, through Zoe

Zo has been given to 411 babies in the U.S. since 1957. In 2025 it ranked #14,926 of 17,293 girls’ names in use. Its peak year was 2017, with 40 recorded. It's used for both sexes: 75% girls, 25% boys all-time.

Babies named Zo, 2025

1 in 553,000

Zo over time, 1880–2025

GirlsBoys
01020304018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Girls or boys — Zo over time

In 2025, Zo went to 46% girls and 54% boys.

19572025

A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.

Zo: meaning, origin, and history

Life, through Zoe

Deeper origin not confirmed in the cited records

What Zo means

Zo belongs to the name family reached through Zo → Zoe → Zoë. Its meaning is “life”.

Origin, language, and formation

Zo is used in English.

Related names and everyday forms

Related names include Zoe and Zoë.

American usage and historical context

In the United States, 310 girls were recorded with the name Zo between 1957 and 2025. Its highest annual count was 40 in 2017; its best national rank was #3,846 in 2017.

Over 5 years its rank fell, from #3,912 in 2020 to #14,926 in 2025. Over 10 years its rank fell, from #8,436 in 2015 to #14,926 in 2025.

In the United States, 101 boys were recorded with the name Zo between 2000 and 2025. Its highest annual count was 16 in 2022; its best national rank was #5,867 in 2022.

Over 5 years its rank fell, from #8,058 in 2020 to #10,682 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Zo?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 553,000
6 of 3,315,165 births
Among girls only
1 in 268,000
<0.01% of girls
Rank, 2025
#14,926
of 17,293 girls’ names in use
Coin-flip room size
382,984 kids
Even odds of a second one

Where Zo sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 382,984 children born in 2025 and it's an even bet that one of them is another Zo. In a class of 30 the chance is Under 1%.

When Zos were born

Half of everyone ever recorded as Zo was born before 2018 — so the typical Zo is around 7 today.

Median birth year
2018
About 7 years old
Biggest decade
2010s
55.8% of all use
Born in the last 25 years
98.1%
A modern name
Recorded since 1950
310
People you could plausibly meet
Choose a decade

2010s — 55.8% of all recorded uses (173).

Is Zo rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
−2,777
Places dropped
Rank vs 5 years ago
−11,014
Places dropped
Rank vs 10 years ago
−6,490
Places dropped
Births vs 10 years ago
0.43×
Fewer babies than then
Share of its own peak
15.0%
Peak was 2017 (40)
Years since peak
8
Years
Year-to-year steadiness
Volatile
34.0% average annual change
Best rank ever
#3,846
2017

Where Zo is used

Across 1910–2025, Zo was most concentrated in Arizona — about 1 in 16,667 girls, against 1 in 26,411 across all states with data. It was least common in South Carolina (1 in 50,000).

26 per 100,000

Most concentrated

  1. 1Arizona1 in 16,667
  2. 2South Carolina1 in 50,000

Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Zo has too little recent state data to map, so this covers all years from 1910.

Zo around the world

Where Zo ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • South Australia
    1976–1976
    #645
    in 1976

Popularity data from Consumer and Business Services (South Australia). CBS SA data under CC BY 4.0.

Zo by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025
#14,926
Trend vs 5 yrs ago
Down 11,014
Best rank ever
#3,846
2017
Peak year
2017
40 that year
First recorded
1957
Last recorded
2025
All-time count
310
Count in 2025
6

As a boy's name

Rank in 2025
#10,682
Trend vs 5 yrs ago
Down 2,624
Best rank ever
#5,867
2022
Peak year
2022
16 that year
First recorded
2000
Last recorded
2025
All-time count
101
Count in 2025
7

Names similar to Zo

Matched on shared beginnings and endings, similar length, and comparable popularity.

Sibling names for Zo

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Zo