Cossie

Boys' name

Meaning not yet documented

Cossie has been given to 11 babies in the U.S. since 1919. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1919, with 6 recorded.

Babies named Cossie, 1925

1 in 467,000

Cossie over time, 1880–2025

Boys
024618801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

How common is Cossie?

Cossie had fewer than 5 recorded uses in 2025, so these figures use 1925, the last year it was published.

Among all babies, 1925
1 in 467,000
5 of 2,333,232 births
Among boys only
1 in 223,000
<0.01% of boys
Rank, 1925
Unranked
Fewer than 5 uses
Coin-flip room size
323,456 kids
Even odds of a second one

Where Cossie sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 1925 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 323,456 children born in 1925 and it's an even bet that one of them is another Cossie. In a class of 30 the chance is Under 1%.

When Cossies were born

Half of everyone ever recorded as Cossie was born before 1919 — so the typical Cossie is around 106 today.

Median birth year
1919
About 106 years old
Biggest decade
1910s
54.5% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
0
People you could plausibly meet
Choose a decade

1910s — 54.5% of all recorded uses (6).

Is Cossie 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
—
Not ranked then
Rank vs 5 years ago
New entry
Not ranked then
Rank vs 10 years ago
—
Not ranked then
Births vs 10 years ago
—
Not published both years
Share of its own peak
0%
Peak was 1919 (6)
Years since peak
106
Years
Year-to-year steadiness
Not enough data
Too few years
Best rank ever
#3,824
1919

Spellings of Cossie

Cossie is not the most common spelling — Jessie is, with 81.5% against Cossie's <0.01%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Cossie by the numbers

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

As a boy's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#3,824
1919
Peak year
1919
6 that year
First recorded
1919
Last recorded
1925
All-time count
11
Count in 2025
Under 5

Names similar to Cossie

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

Sibling names for Cossie

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 Cossie