150+ Baby Names That Mean Water, Sea or Ocean

Water shapes almost every culture's earliest stories. It is the river that fed the first cities, the sea that carried explorers to new shores, and the rain that decided whether a harvest survived. So it's no surprise that when parents look for a name that feels timeless, deep and a little bit wild, they so often turn to the ocean. A water-inspired name can capture calm (like Lana, "calm as still waters"), power (like Kaimana, "power of the sea"), or mystery (like Thalassa, the Greek word for the sea itself).

This guide pulls together water, sea and ocean names from more than a dozen languages and traditions — with the meaning and origin of each one — so you can pick something that actually says what you want it to say about your child.

Why Parents Choose Water and Ocean Names

•     Universal symbolism — water represents life, renewal and emotional depth in nearly every culture, making these names meaningful regardless of your background.

•     Calm, flowing sound — many water names (Lana, Marina, Nami, Kai) are naturally soft and easy to pronounce across languages.

•     Gender flexibility — names like Kai, Deniz, Ren and Sedna work well as unisex or gender-neutral choices.

•     Strong middle-name options — short water names pair easily with longer first names, e.g., "Ava Marin" or "Elias Kai."

 

How to Choose the Right Water-Inspired Name

With so many options across cultures, it helps to narrow things down by what you actually want the name to communicate. A few questions worth asking before you commit:

•     Do you want the literal meaning or just the feel? Names like Kai or Marina mean "sea" outright, while names like Lana ("calm as still waters") lean more toward mood than a direct translation.

•     Does the origin matter to your family? If you have Hawaiian, Irish, Persian or Yoruba heritage, choosing a water name from that specific tradition can add a layer of personal meaning beyond the aesthetic.

•     How will it sound with your surname? Short water names (Kai, Nami, Yam) pair well with longer surnames, while longer names (Kailani, Morwenna) can balance a short surname.

•     Is it easy to pronounce where you live? Some names travel easily across languages (Marina, Kai, Deniz), while others (Thalassa, Pelagia) may need a pronunciation guide for family and friends.

Popular Baby Names That Mean Water, Sea or Ocean — At a Glance

Here's a fast-reference table before we go region by region:

Name	Meaning	Origin	Gender
Kai	Sea	Hawaiian	Unisex
Moana	Ocean	Hawaiian / Maori	Girl
Marina	Of the sea	Latin	Girl
Dylan	Son of the sea	Welsh	Boy
Mira	Ocean	Sanskrit	Girl
Nami	Wave	Japanese	Girl
Thalassa	The sea	Greek	Girl
Darya	Sea, ocean	Persian	Unisex
Deniz	Sea	Turkish	Unisex
Muirin	Born of the sea	Irish	Girl
Kaito	Ocean soaring	Japanese	Boy
Hải	Ocean	Vietnamese	Boy
Sedna	Inuit sea goddess	Inuit	Girl
Bahari	Sea, ocean	Swahili	Unisex

Hawaiian and Polynesian Names Meaning Water or Ocean

Island cultures live in constant conversation with the sea, and their names reflect it — direct, poetic and often carrying a second layer of meaning about mood or spirit.

•     Kai — "sea"; short, unisex and one of the most popular ocean names worldwide.

•     Moana — "ocean"; a Hawaiian and Maori name that became globally known through popular culture.

•     Nalu — "wave"; a Hawaiian boy's name tied to surfing culture.

•     Kailani — "sea and sky," combining Hawaiian words for ocean and heaven.

•     Kaimana — "power of the sea" or "diamond of the sea."

•     Lana — "calm as still waters," a gentle, single-syllable option.

•     Heremoana — Maori for "beloved ocean."

Greek, Latin and Southern European Names Meaning Sea

Classical mythology gave the ancient world entire pantheons of sea gods and nymphs, and many of their names are still used today.

•     Thalassa — Greek for "the sea," once the personification of the ocean itself.

•     Marina / Marino — Latin for "of the sea," the root of many modern names including Marin and Marinella.

•     Oceana / Oceanus — from the Greek Okeanos, the Titan god who personified the world's oceans.

•     Pelagia — Greek, "open ocean," from the word pelagos.

•     Delphine — Greek-rooted, associated with dolphins and the sea.

•     Naida — Greek, referring to water nymphs, or naiads, of rivers and springs.

Celtic, Norse and Northern European Water Names

In Ireland, Wales and Scandinavia, water names are tied closely to folklore — sea gods, water spirits and coastal geography all left their mark on the naming tradition.

•     Dylan — Welsh, "son of the sea," from the mythological figure connected to the ocean.

•     Muirin — Irish, "born of the sea" or "bright seas."

•     Morwenna — Welsh, "maid of the sea" or "waves of the sea."

•     Aegir — Old Norse, the name of the sea god who ruled the ocean's storms.

•     Calder — Scottish, "rough waters," originally a place name.

•     Guinevere — Welsh, "white wave," long associated with Arthurian legend.

•     Ondine — French/German, referring to a water spirit or mermaid figure.

Sanskrit and Indian Names Meaning Ocean

In Sanskrit-rooted naming traditions, water is closely linked to vastness, depth and cosmic imagery, which shows up directly in the meanings below.

•     Mira — Sanskrit, "ocean," also carrying meanings of admiration and devotion.

•     Avisa / Avish — Sanskrit, "the ocean."

•     Ahir — Sanskrit-origin, meaning "ocean."

•     Saagar — Hindi, a direct word for "ocean," widely used as a given name.

•     Varuna — the Vedic deity associated with cosmic waters and the sea, also used as a name.

Japanese, Vietnamese and East Asian Names Meaning Water

East Asian naming traditions often build meaning character by character, so a single water-related syllable can be combined with dozens of others to create a unique name.

•     Nami — Japanese, "wave," also carrying meanings of beauty.

•     Kaito — Japanese, "ocean soaring" or "ocean flying," a widely popular boy's name in Japan.

•     Umi — Japanese, a direct word for "sea."

•     Mizuki — Japanese, "beautiful moon over water."

•     Hải — Vietnamese, translating directly to "ocean."

•     Hai / Shui — Chinese; Hai means "sea," and Shui translates directly to "water."

Hebrew, Arabic and Persian Names Meaning Sea

Desert cultures often treat water as sacred and life-giving, and their sea-related names tend to carry an added sense of nobility or divinity.

•     Darya — Persian, "sea" or "ocean," also the name of major Central Asian rivers.

•     Yam — Hebrew, a direct word for "sea."

•     Asherah — Hebrew, "lady of the sea."

•     Anahita — ancient Persian, "water goddess," tied to an important pre-Islamic deity.

•     Malik — Arabic, meaning "ocean" or "king," depending on regional usage.

•     Deniz — Turkish, a direct, unisex word for "sea," popular across Turkey.

•     Agam — Hebrew, meaning "lake."

African Names Meaning Water, Sea or Ocean

Across the many languages of Africa, water names often connect directly to specific seas, rivers or the rains that sustain a community.

•     Bahari — Swahili, meaning "sea" or "ocean," used for both boys and girls.

•     Yemaya — a revered Yoruba water deity associated with the ocean, still used as an inspiration for names today.

•     Adetokunbo — Yoruba, meaning "the crown returns from over the sea."

•     Panya — Swahili for "water."

•     Mazi — Igbo for "water."

•     Dziva — Shona, meaning "water."

•     Ibani — Yoruba, meaning "flowing water."

Native American and Latin American Names Meaning Water

•     Sedna — the Inuit goddess of the sea and marine animals.

•     Tallulah — believed to mean "leaping water" in Choctaw.

•     Marisol — Spanish, a blend of "mar" (sea) and "sol" (sun).

•     Jordan — from the Jordan River; a widely used unisex name with a water origin.

Gender-Neutral Water and Ocean Names

If you're after something that works well for any child, these water names are commonly used across genders:

•     Kai — "sea" (Hawaiian)

•     Deniz — "sea" (Turkish)

•     Bahari — "sea, ocean" (Swahili)

•     Agam — "lake" (Hebrew)

•     Marin — "of the sea" (Latin-rooted)

•     Ren — used in Japanese naming with water and lotus-related meanings depending on the characters chosen

Frequently Asked Questions

What is the most popular baby name that means ocean or sea?

Kai is generally considered the most popular water-related baby name worldwide. It's Hawaiian for "sea," short, easy to pronounce in many languages, and used for boys, girls and unisex naming alike.

What girl name means water in Latin?

Marina is the classic Latin choice, meaning "of the sea." Related forms include Marin, Marinella and Marisol (a Spanish blend of "sea" and "sun").

What boy name means ocean in Japanese?

Kaito is a widely used Japanese boy's name meaning "ocean soaring" or "ocean flying." Umi, meaning "sea," is another direct option.

Is Kai a unisex name?

Yes. Kai is used as a given name for boys, girls and nonbinary children across Hawaiian, Scandinavian, Japanese and several other naming traditions, and it is one of the most common unisex water names globally.

What are some unique, uncommon names that mean water?

For a rarer option, consider Thalassa (Greek, "the sea"), Pelagia (Greek, "open ocean"), Darya (Persian, "sea"), Sedna (Inuit sea goddess) or Bahari (Swahili, "sea").

What is a good gender-neutral name that means water?

Kai, Deniz, Bahari and Agam all work well as gender-neutral choices, since each is used for boys, girls and nonbinary children in their cultures of origin without a strong gendered association.

Are water names good middle names too?

Yes. Short, one- or two-syllable water names like Kai, Mira, Yam and Nami work especially well as middle names because they pair easily with almost any first name while still carrying a clear, meaningful origin.

Find the Perfect Water-Inspired Name

Whether you want something globally recognized like Kai and Marina, or a rarer pick like Pelagia or Bahari, a water-themed name gives your child a lifelong connection to something vast, calming and universal. Browse JollyNames.ai for AI-matched suggestions, pronunciation guides and sibling-name pairings built around water, nature and mythology themes — so you can find a name that fits your family perfectly.