This body of water runs deep; the best of a group of new possibilities that includes Bay, Ocean, River, and the more established Brook. It has received attention via the actress Lake Bell. Lake would make a particularly cool and refreshing middle name, as Gisele Bundchen and Tom Brady did for daughter Vivian.

Tally is a spirited masculine name with multiple origins and meanings. Most commonly, it derives from the Old French 'tailler' meaning 'to cut,' evolving into an English occupational surname for woodcutters. Alternatively, it can be a shortened form of names like Talbot or Taliesin, the latter being a revered Welsh poet from Arthurian legends. Tally also functions in everyday language as a word meaning 'to count' or 'keep score,' lending it numerical associations. As a first name, it remains uncommon for boys, giving it a distinctive quality. With its cheerful sound and two-syllable rhythm ending in the playful 'y,' Tally conveys a friendly, approachable character. This succinct name balances casual charm with historical depth, appealing to parents seeking something brief yet meaningful.

Blue suddenly came into the spotlight, as the unusual color name chosen by Beyonce and Jay-Z for their baby girl Blue Ivy. Blue is also a starbaby middle name du jour, used for both sexes in different spellings and forms, from John Travolta and Kelly Preston's Ella Bleu to Alicia Silverstone's Bear Blu. Dave 'The Edge' Evans named his daughter Blue Angel back in 1989.

Out-of-the-ordinary gemstone name derived from lapis lazuli, which is said to enhance awareness and intellect, impart ancient wisdom and cure many ailments, making it an interesting possibility for a blue-eyed girl. Lazuli — or Azure or Blue — are other options.

This simple yet evocative French word name was chosen for her daughter by model Niki Taylor. While Ciel may be pronounced in French with two syllables, many will pronounce it as "seal" and there may be confusion with Celia and sister Ceil.

Expansive, sunny Italian word name.

This name's similarity to Kalani and pretty Hawaiian origin helped catapult it into the Top 1000 for the first time in 2013.

When actress Susan Ker Weld changed her name to Tuesday, she opened up a whole calendar of possibilities. This was decades before the arrival of Sunday Rose Urban and years before Wednesday Addams made midweek a possibility.

Keilani is among the fastest rising girls' names in some US states, a once-unusual name perhaps popularized by its similarity to both Leilani and Kayla. Its rhythmic appeal cannot be denied.

Blu is a new (nu?) spelling of an increasingly popular color name, also spelled Blue and Bleu. Blu is the spelling used for one of the Waldrop sextuplets.

Cyan is a highly unusual blue-green color name, a classmate of Celadon and Cerulean. It does come with the homey nickname Cy.

Now deeply associated with the gemstone Lapis Lazuli, Lazuli is derived from one of the places where the stone was first mined. The word Lazuli is the root for words like azure. Lapis Lazuli is a deep and rich blue color and was used for pigments and jewellery.

Kalani is a rhythmic name that can be used for either gender though it is predominantly used on girls in the US. With its celestial meaning, and cool K beginning, it only entered the US Top 1000 for the first time in 2015. Now in the Top 400, it joins Kai and Leilani as popular choices with Hawaiian origins.

Classic Italian name with celestial vibes.

A character name from Avatar: The Last Airbender. Azula is one of the two main antagonists of the series: a Firebender who produces blue flames (hence her name, which is derived from Spanish, Portuguese and Galician azul, meaning "blue").

Azul is the Spanish word for "blue" and was first recorded as a baby name (for girls) in 1995. It's technically considered unisex today, although it is still more than three times as common as a feminine name.

A variation of Nila, a name spread through African by the substantial Indian population there. Also a variant of Neala and Neila.

Now deeply associated with the gemstone Lapis Lazuli, Lazuli is derived from one of the places where the stone was first mined. The word Lazuli is the root for words like azure. Lapis Lazuli is a deep and rich blue color and was used for pigments and jewellery. Lazuli can be used for a boy or a girl.

This vivid sky blue color name is at present used mostly for boys, but it is used in such small numbers that it could easily work on any gender. Whimsical and magical, but reminiscent of more established names, such as Ocean, Elowen, Seraphine, and Celestine, Cerulean might just make more appearances in coming years.

Cerulean is just beginning to be heard as a name thanks to its distinctive sounds and the appealing electric-sky-blue it evokes. Reminiscent of Ocean, Aurelian, Cyrus, and Caspian, it was given to just 5 babies in 2024, but that could change in coming years.