Hai

/HH-AA-IH/

Boy BuddhistOther Vietnamese origin VietnameseSoutheastAsian

Sea, ocean — Hai (Vietnamese Hải, from Sino-Vietnamese 海 'sea') is a popular Vietnamese masculine name evoking the open sea. Vietnam's long Pacific coastline makes maritime imagery culturally central. Used in compound names like Hai Anh (sea swallow), Hai Long (sea dragon).

See Hai scored for your family

Quick — what every parent wants to know about Hai:

🌟 What's Hai's birth star? 🔢 What's its numerology? 🔊 Does it go with your names? 👶 Is Hai right for your baby?

Yes — Hai is a Buddhist boy name of Vietnamese origin, meaning “Sea, ocean — Hai (Vietnamese Hải, from Sino-Vietnamese 海 'sea') is a popular Vietnamese masculine name evoking the open sea. Vietnam's long Pacific coastline makes maritime imagery culturally central. Used in compound names like Hai Anh (sea swallow), Hai Long (sea dragon).”. It also appears in Other tradition.

The one thing this page can't tell you

How well does Hai fit your family?

This page tells you what Hai means. The app tells you whether it's right for your baby — scored against the names already in your family, your heritage, and your baby's exact birth star.

Unlock Hai's score — free
NameRoot scoring a name across six signals — phonetics, numerology, birth star, culture, meaning and uniqueness

Six signals — scored for your family, not in the abstract:

🌟
Birth starAuspicious for your baby?
🔢
NumerologyDestiny 9, matched to you
🔊
PhoneticsGoes with your names?
💗
MeaningThe Nature cluster
🛕
HeritageBuddhist + family-tree fit
✨
UniquenessFamiliar vs rare

Meaning & origin

Hai is a boy's name of Vietnamese origin, traditionally used in Buddhist families. The name means "Sea, ocean — Hai (Vietnamese Hải, from Sino-Vietnamese 海 'sea') is a popular Vietnamese masculine name evoking the open sea. Vietnam's long Pacific coastline makes maritime imagery culturally central. Used in compound names like Hai Anh (sea swallow), Hai Long (sea dragon)." and belongs to the Nature cluster — names drawn from the natural world — earth, water, sky.

Beyond its Buddhist heritage, Hai is also used in Other traditions, reflecting how this name has traveled across cultures.

Common among Vietnamese, SoutheastAsian families, Hai carries cultural weight that goes beyond its dictionary definition — it's a name with a story and a community.

What's Hai's birth star?

In Vedic tradition, a baby's name is matched to their nakshatra (birth star) and rashi (moon sign) — usually through its first syllable. Hai opens with “Ha.” But whether that's auspicious depends on your baby's exact date, time, and place of birth.

A name's rashi card in the NameRoot app — element, ruling planet, and quality

NameRoot works it out for you. Enter your baby's birth details and see exactly which nakshatra and rashi Hai aligns with — and how strongly it scores.

See Hai's birth-star reading →

What does Hai's numerology say?

Numerology assigns each name a single-digit destiny number by summing its letter values. Different schools use different mappings — NameRoot computes both so you can see how Hai resonates in either tradition.

Pythagorean
9
compassion and humanitarian service
Chaldean
7
introspection and spiritual wisdom

Hai's destiny number is 9 — but a number only matters in context. The app matches it to your family's own numbers for a real compatibility read. See Hai's full reading →

Does Hai go with your family's names?

Hai breaks into 3 sounds: /HH-AA-IH/. The real test isn't how it sounds alone — it's how it sounds beside the names already in your family: yours, your partner's, and any brothers or sisters. NameRoot scores that harmony, so Hai sits naturally next to a Mum and Dad like Michael & Anna, or a big sister named Gianna — no awkward clashes, no two names that blur together. Hear Hai beside your family's names →

Names similar to Hai

If Hai resonates with you, these names live in the same world — drawn from the same tradition, sharing the same meaning, or echoing a similar sound.

From the same tradition

Other Buddhist boy names, common in Vietnamese families

Dharma
Cosmic law, righteous duty, the moral order that upholds the universe — Dharma is the single most important concept in Indian civilisation, the principle that governs stars in their orbits and guides human beings toward justice. As a name it asks a child to live with integrity, to seek what is right before what is easy, and to hold the world in balance
Lobsang
Kind-hearted and good-minded, the aspiration for a gentle generous heart combined with the clarity of an upright mind — Lobsang was borne by three of the Dalai Lamas as part of their regnal names, including the Great Fifth who unified Tibet, and the thirteenth whose long life spanned the encounter between traditional Tibet and a changing world. A name of immense spiritual prestige in the Gelugpa tradition
Sangye
Buddha — the Awakened One — as a living aspiration, a name that calls the child to embody the qualities of enlightened mind: clarity, compassion, and boundless awareness. In Tibetan Buddhism Sangye is the first of the Three Jewels to which every Buddhist takes refuge, and to name a child thus is the most profound statement of aspiration a Tibetan Buddhist parent can make
Long
Dragon — Long (Vietnamese Long, from Sino-Vietnamese 龍 'dragon') is among the most-honored Vietnamese masculine names. The dragon is Vietnam's national symbol — tradition holds the Vietnamese descend from a dragon father (Lac Long Quan) and a fairy mother (Au Co). Hanoi was originally named Thang Long ('rising dragon').

Sharing the same meaning

Other Buddhist boy names from the Nature cluster

Kai
Ocean, sea, the vast expanse of water that connects every shore — Kai is a name shared across cultures, meaning sea in Japanese and Hawaiian, and carrying the limitless horizon of open water in every version. It speaks of depth without bottom, strength that moves in tides rather than explosions, and the serene power of an element that covers most of the earth and answers to the moon
Ren
Lotus — the flower that rises from muddy water to bloom in perfect purity. In Japanese Buddhist tradition, the lotus represents spiritual awakening and the possibility of beauty emerging from adversity.
Kaito
Ocean flight, soaring over the sea — combining kai (ocean) with to (fly, soar). A modern Japanese name carrying the freedom of flight over vast waters, popular for its adventurous spirit and melodic sound.

Names that sound similar

Buddhist boy names that open with the same syllables as Hai

Haruto
Sunlight soaring — combining haru (sun, spring) with to (fly, soar). A name of radiant ambition that pairs the warmth of sunlight with the freedom of flight, aspiring to a life that rises and shines.
Hajoon
Summer handsome, great and talented — combining ha (great/summer) with joon (handsome/talented). Seasonal grandeur.
Hao
Vast, the great expanse — Hao (浩) names a boy after the boundless sea, the great expanse of being. A traditional Chinese male name used as both single character and in compounds (Haoyu, Haoran).

Explore more names

Keep exploring names like Hai — by tradition, by meaning, or by first letter.

Buddhist boy namesNames that mean natureNames starting with H All baby names

Common questions about Hai

What does the name Hai mean?

Hai means "Sea, ocean — Hai (Vietnamese Hải, from Sino-Vietnamese 海 'sea') is a popular Vietnamese masculine name evoking the open sea. Vietnam's long Pacific coastline makes maritime imagery culturally central. Used in compound names like Hai Anh (sea swallow), Hai Long (sea dragon).." It is a boy name of Vietnamese origin, traditionally used in Buddhist families.

Is Hai a boy or girl name?

Hai is most commonly used as a boy name.

What is the origin of the name Hai?

Hai is of Vietnamese origin, used in Buddhist, Other traditions, commonly among Vietnamese, SoutheastAsian families.

Is Hai a Buddhist name?

Yes. Hai is a boy name traditionally used in Buddhist families, of Vietnamese origin. It also appears in Other tradition.

What does Hai mean in Vietnamese?

Hai originates from Vietnamese, where it means "Sea, ocean — Hai (Vietnamese Hải, from Sino-Vietnamese 海 'sea') is a popular Vietnamese masculine name evoking the open sea. Vietnam's long Pacific coastline makes maritime imagery culturally central. Used in compound names like Hai Anh (sea swallow), Hai Long (sea dragon).."

What is the numerology of Hai?

Hai has a Pythagorean destiny number of 9 — compassion and humanitarian service.

See how Hai scores for your family

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