Boy Name · English Origin
Klaus
Last reviewed: June 2026
Klaus is a boy baby name of English origin, meaning "Pure hearted". It currently sits in the Rare tier of US baby names for 2026, and parents who love Klaus often also consider Kelsi.
Names like Klaus
Frequently asked about Klaus
What does the name Klaus mean?
Klaus means "Pure hearted" and is of English origin.
What is the origin of Klaus?
Klaus originates in English naming tradition.
How do you pronounce Klaus?
Klaus has 5 letters and is most commonly stressed on the first syllable.
Is Klaus a boy's or girl's name?
Klaus is primarily used as a boy's name in US records.
How popular is Klaus in 2026?
In our 2026 popularity tracker, Klaus sits in the Rare tier — an uncommon, standout choice.
What names are similar to Klaus?
Names that share Klaus's sound and style include Kelsi, Kelci, Kelsie, Kelsea, Kaleigh.