Roy vs Callister

Baby Name Comparison — 2026

Roy

Boy #542 Most Popular 1 Syllable

"red (hair color)"

Origin: Scottish Gaelic

Scottish English American Dutch

✓ All Clear

Boy #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Roy Rank #542

Callister Rank #43,579

Roy is more popular, ranked #542 vs #43579 for Callister.

Is Roy or Callister more popular?

Roy is more popular, ranked #542 compared to Callister at #43579 in the United States.

What do Roy and Callister mean?

Roy means "red (hair color)" (Scottish Gaelic origin). Callister means "defender of men" (Greek via Gaelic origin).

Are Roy and Callister boy or girl names?

Roy is primarily a boy name. Callister is primarily a boy name.