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

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.

Numerology of Hai

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

compassion and humanitarian service

Chaldean

introspection and spiritual wisdom

How Hai sounds

NameRoot scores the phonetic fit of every name against the sound of your last name. The pronunciation of Hai breaks down into 3 phonemes: /HH-AA-IH/. In the app, you'll see how those sounds flow with your family name across rhythm, stress, and consonant clusters.

The six signals, applied to Hai

NameRoot scores every name across six independent dimensions. Here's how Hai maps to each — install the app to see the full compatibility score for your specific family.

01 — Birth Star

Nakshatra match

Enter your baby's birth date in the app and we'll compute the nakshatra compatibility score.

02 — Numerology

Destiny alignment

Pythagorean and Chaldean life-path calculations (destiny 9) matched against your family's own numerology profile.

03 — Phonetics

Last-name fit

Rhythm, stress, and consonant clusters measured with IPA to see how Hai flows with your family name.

04 — Meaning

Nature

Hai belongs to the Nature cluster — names drawn from the natural world — earth, water, sky.

05 — Cultural & Tradition

Buddhist

As a Buddhist name, Hai carries religious and cultural weight scored against your family's heritage — plus grandparent-name matches, saint's-day alignment, and generational naming patterns scored against your family tree.

06 — Uniqueness

Popularity balance

How common Hai is today versus historically — finding the sweet spot between familiar and forgotten.

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).

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.

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

NameRoot is the only baby-name app that scores every name across 6 signals against your specific family context. Download free — Hai is waiting.

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