Is Kassidy a boy or girl name?

Kassidy is primarily a girl name in U.S. records: about 98% of recorded births are female.

What is the average age of someone named Kassidy?

The average Kassidy alive today is an estimated 19 years old. People named Kassidy were most often born around 2000.

When was the name Kassidy most popular?

Kassidy peaked in 2000 with 1,012 recorded births in the United States.

What vibe does the name Kassidy have?

In one report's words: upbeat, phonetic, late-nineties. Kassidy ranks #1792 among all U.S. first names since 1880.

Kassidy — Name Meaning, Age & Vibe

UNDERSTAND YOUR NAME

Origin & Meaning

AI-Written

Derived from the Irish surname Ó Caiside, historically associated with a hereditary family of physicians in County Fermanagh. The name crossed into American first-name ledgers during the late-twentieth-century surge in surname adoption, with this K-initial variant first appearing in 1975.

Also answers toKass, Kassie, Kas

Fig. 1 — Births per annum, 1975–2025

SSA Data

1975 peak: 1,012 souls, A.D. 2000 2025

2025: 247 born, falling ↘

Estimated Age

19 yrs

Most Kassidys were born around 2000 — learned to read on a touchscreen.

Peak Reign

2000

№314 that year

Generation

Gen Z, 57%

then Gen Alpha 30% · Millennial 13%

Rarity

Top 2000 all-time

≈22K ever born · now falling

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Estimates from SSA birth records and standard survival rates. Immigration and name changes not counted.

Kassidy grew up with

SSA Data

YouTube after school·Silly Bandz·Wii Sports

Generation Distribution — Living Kassidys

SSA Data

Millennial 13%Gen Z 57%Gen Alpha 30%

Data vs. Humans

What the data says

SSA Data

SSA: Kassidy peaked in 2000.

Estimated average age: 19.

What people think

Opinion Ledger

Awaiting human data — cast the first votes.

Kassidy sounds like someone born in —

Fig. 2 — Style Coordinates

AI Seed · Votes Override at n=30

Vintage Modern

Formal Casual

Soft Strong

Cast your vote No account · one tap

In your mind, Kassidy sounds more like a —

Voting opens when the ledger goes live. No account. 24h cooldown per question.

Public Opinion Ledger

Ledger Opens Soon

The public has not yet weighed in on Kassidy. Early ballots carry the most weight.

First Impressions

AI-Written

A Kassidy reads as quintessentially turn-of-the-millennium. The substitution of a K gives the traditional Irish surname a sharper, distinctly American cadence. With an average age around nineteen, the name belongs largely to dorm lounges and recent driver licenses. It never has to explain its pronunciation, though it will spend a lifetime clarifying its first letter.

Field Notes

AI-Written

Field Note 01

The name first entered the national birth registry in 1975 and climbed steadily until peaking in 2000 with about one thousand births.

Field Note 02

Over eighty-five percent of all living bearers belong to Generation Z or Generation Alpha.

Field Note 03

Annual use has tapered off significantly since its peak, recording fewer than three hundred births a year in recent tallies.

Notable Kassidys

AI-Written

Kassidy CookOlympic diver, b. 1995

Adjacent Names

Cassidy · Kaylee · Kenzie · Mackenzie · Kylie · Sierra

Ephemera — If Kassidy were a…

AI-Written

City

Gilbert, Arizona

Color

Frosted periwinkle

Artifact

Translucent gel pen set

Job

Campus recreation supervisor

And what of your name?