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GirlAncient Greek origin3 syllables

Alexius

Meaning: “helper, defender”

About the name Alexius

Alexius is a girl name with Ancient Greek roots, meaning “helper, defender”.

It has a unique feel. Fewer than 5 US babies of either sex received it in 2025, so it's very rare right now. Its peak year since 1940 was 1978. Since 2000, 94% of US babies named Alexius were girls.

Etymology

From Ancient Greek, meaning “helper, defender”.

Name meaning adapted from Wiktionary (“Alexius”) by Wiktionary contributors, CC BY-SA 4.0.

US rank 2025
Not ranked
In 2015
Not ranked
Babies in 2025
Under 5

Popularity of Alexius, 1940–2025

030619112119401960198020002020
Girls BoysBabies per year in the US

Latest SSA data: 2025.

Popularity data: U.S. Social Security Administration national baby names (public domain; names given to at least 5 babies of one sex per year).

Names similar to Alexius

Name meanings marked or linked “Wiktionary” are adapted from Wiktionary by Wiktionary contributors, CC BY-SA 4.0; each name page links its source entry.