Blu

♀ Girl

Pronounced BLOO /ˈblu/High

Meaning: Streamlined spelling of Blue — from Old French bleu, 'the colour blue' (the sky and sea; calm, depth)Medium

In 30 seconds: Sky and sea: Blu spells Blue — the calm colour. Cool, modern, and warm. Used for both sexes.

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Origin LowEnglish, French

MeaningStreamlined spelling of Blue — from Old French bleu, 'the colour blue' (the sky and sea; calm, depth)

U.S. rank (2025)#6364 ↘ Falling

2025 U.S. births18 girls (0.00% of U.S. girls)

Peak year2022

Total births (all-time)≈ 320

Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Blu is a streamlined spelling of Blue — from Old French bleu, 'the colour blue' (the hue of sky and sea, long a symbol of calm, depth, loyalty, and the infinite). A cool, modern colour word-name (Beyoncé and Jay-Z's daughter Blue Ivy), used for both sexes, here for girls.

It registers thinly in records. Rare, the-colour-blue at the root, and cool.

Did you know? Blue (Old French bleu) names the colour of the sky and sea — a symbol of calm, depth, and the boundless — Blu is a sleek spelling, used for both sexes (Beyoncé's Blue Ivy echoes it).

Overall data confidence 55%

Oxford English Dictionary — blue — word origin

Variations

BlueBleu

Nicknames

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If you like Blu…

Blue— the standard spelling

Bleu— the French spelling

Sky— a fellow sky/blue word-name

Indigo— another blue colour-name

Explore names like Blu

By themeenglish unisex word-name french color-name

By meaningPeace Sky / Heaven Sea / Water

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Frequently Asked

What does the name Blu mean?

Blu spells Blue — 'the colour blue' (the sky and sea).

How do you pronounce Blu?

It's said BLOO /ˈblu/ — a single syllable.

Is Blu a boy or girl name?

Blu is used for both sexes; this page covers its use as a girl's name.

How popular is Blu?

Blu is a rare name in the U.S.