Boy Name · English Origin
Erastus
Last reviewed: June 2026
Considering Erastus? It is a boy name whose meaning is "Radiant light", rooted in English naming tradition, and ranks in our Rare popularity tier. Phonetically it shares territory with Erasmo.
Names like Erastus
Frequently asked about Erastus
What does the name Erastus mean?
Erastus means "Radiant light" and is of English origin.
What is the origin of Erastus?
Erastus originates in English naming tradition.
How do you pronounce Erastus?
Erastus has 7 letters and is most commonly stressed on the first syllable.
Is Erastus a boy's or girl's name?
Erastus is primarily used as a boy's name in US records.
How popular is Erastus in 2026?
In our 2026 popularity tracker, Erastus sits in the Rare tier — an uncommon, standout choice.
What names are similar to Erastus?
Names that share Erastus's sound and style include Erasmo, Errick, Erskin, Erskine, Erick.