Kastor

Q: How popular is the name Kastor?

Kastor is ranked #25466 in popularity for boy names.

Boy Name #25,466 Most Popular Hidden Gem 6 Letters

A distinctive boy name with a rare, memorable quality.

Meaning & Origin

Kastor is a boy name, recorded for 5 babies in US birth records.

Parents who love the name Kastor often also consider Kying, Kyne, Yia .

Popularity Over Time

#25,466

Current Rank

New Entry Based on SSA data 1880–present

Compare Kastor with other names →

Quick Facts

Gender: Boy
Popularity Rank: #25,466
Total SSA Count: 5

Nicknames

Kas Kay Kasie Kastie

Middle Name Ideas

Suggested pairings based on syllable flow and style

Kastor Bennett

Timeless choice, smooth 2-2 syllable flow
Kastor Andrew

Timeless choice, smooth 2-2 syllable flow
Kastor Damian

Timeless choice, extended 2-3 combo
Kastor Dominic

Timeless choice, extended 2-3 combo
Kastor Jayden

Timeless choice, smooth 2-2 syllable flow
Kastor Angel

Timeless choice, smooth 2-2 syllable flow
Kastor Charles

Timeless choice, smooth 2-2 syllable flow
Kastor Brooks

Timeless choice, smooth 2-1 syllable flow
Kastor Adriel

Timeless choice, extended 2-3 combo
Kastor Diego

Timeless choice, extended 2-3 combo

Sibling Match Premium

Check how Kastor fits with existing sibling names — style, sound, and origin.

Enter sibling names above to see compatibility.

Similar Names

See all names like Kastor →

Coletin Boy Greek via Latin Ared Boy Hebrew Kyne Boy Irish Gaelic Brandel Boy Old English Leevan Boy Slavic parallel Kying Boy Old English Seville Boy Spanish/Latin

Compare Kastor with...

Kastor vs Coletin Kastor vs Ared Kastor vs Kyne Kastor vs Brandel

Playground Safety

Kid-Friendly

Can't decide?

Start a tournament bracket with Kastor and other names you're considering.

Start a Tournament

Like this name?

Check how Kastor sounds with your surname and test for potential nicknames.

Analyze This Name

Browse more boy names →

Explore More Generators

🧝 Fantasy Name Generator
Create names for D&D and RPG characters
🐾 Pet Name Generator
Find the perfect name for your furry friend
🎭 Character Name Generator
Names for fictional characters across genres

Frequently Asked Questions About Kastor

Is Kastor a boy or girl name?

Kastor is primarily used as a boy name.

How popular is the name Kastor?

Kastor is currently ranked #25466 in popularity for boy names in the United States.

What are common nicknames for Kastor?

Common nicknames for Kastor include Kas, Kay, Kasie, and Kastie.

Is Kastor a common or rare name?

Kastor is an uncommon name, ranked #25466 in the US. Its rarity gives it a distinctive, memorable quality.

About the Name Kastor

Kastor is a boy name .

Kastor is currently ranked #25,466 in popularity for boy names in the United States.

Common nicknames for Kastor include Kas, Kay, Kasie, and Kastie. These shorter forms provide casual alternatives while keeping the elegance of the full name.