Fun fact: Marion was the birth name of movie star John Wayne. Although commonly thought of as a female name today, it was actually more popular for boys until the late 19th century, and was given to roughly equal numbers of boys and girls throughout the 1970s-2000s.

Out playing shuffleboard at his condo and not expected back for several generations -- unless it morphs into a girls' name, a la Sydney.

Arty and elegant, Ginevra is one of the most popular girls' names in Italy at the moment, ranking at #3 in a recent year. Ultimately from the Arthurian Guinevere, it's a relative of Jennifer, meaning "white wave, white shadow" or "white phantom".

Marian's (and sister spelling Marion's) image has gone through a sea change of late, recalling less middle-aged matron and more Robin Hood's romantic Maid Marian. Some influences: the SJ Parker-M. Broderick twin daughter Marion and the glamorous French actress Marion Cotillard.

Mirren is a lively and attractive Scottish name, popular in its native country but best known outside Scotland as the surname of the English actor Dame Helen Mirren. It is thought to be a Scottish derivative of the name Marion, from Mary.

A multicultural option that's equally intriguing but more unusual than Maia. Connected to water and the ocean, it is a Top 100 choice in Spain and Puerto Rico and has been rising up the charts in France and the UK in recent years. Alternative (and equally multicultural) spelling alternative Nya has also proved popular.

Maris is an unusual and appealing name that has never appeared in the U.S. Top 1000, overshadowed by its twentieth century elaboration, Marisa/Marissa. It derives from the phrase "Stella Maris," star of the sea, one of the many epithets of the Virgin Mary, and became familiar via the unseen (but unliked) character of sitcom Frasier's ex-sister-in-law.

A popular Japanese name with an uplifting meaning, Kaito is connected to the air and the sea. Said with three syllables and not the two English speakers may expect, it has been borne by a number of Japanese footballers, along with several popular fictional characters, including Kaito Momota of Danganrompa, and the Vocaloid Kaito.

Kairi is the name of the main female character in the popular role-playing video game series, Kingdom Hearts. Voiced by Hayden Panettiere in the main series, Kairi is one of the seven Princesses of the Heart. Kairi entered the US Top 1000 in 2010 and was given to over 400 baby girls in one recent year.

This appealing multi-cultural name, pronounced KYE, is beginning to be used for girls as well as boys. Among its many derivations and meanings: "sea" in Hawaiian, "forgiveness" in Japanese, "willow tree" in Navajo, "food" in Maori, and "earth" in Scandinavian. For girls, it debuted on the US Top 1000 in 2010.

This name of the famous fifth-century sorcerer and mentor of King Arthur may or may not be a bit wizardy for a real-life modern child. Its most noted modern bearer: football star turned actor Merlin Olsen, whose father was named Merle.

Cross-cultural winner.

While Marianna looks like a spelling variation of Mariana, the two names have different etymologies. While the one-N spelling derives from the Roman name Marianus, Marianna is a combination of two classics, Maria and Anna, used in many European languages.

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

Parents have been creating their own names from existing appellations since the beginning of time. So have authors, from Shakespeare to George R. R. Martin. As far as modern attempts go, Esmarie, which combines Esme and Marie, has a nice natural flow and a sound that is very pleasant.

This Roman mythology (and planet) name would be very hard to handle. It derives from a root meaning cloud.

Cormorant is definitely one of the most unusual of the newly fashionable animal names, and one of the rare bird names for boys.

Shelly is a feminine name that originated as a diminutive of Michelle or as a reference to seashells, giving it both personal and nature-inspired origins. Popular during the 1960s and 1970s in English-speaking countries, Shelly has a cheerful, friendly quality that made it a favorite during this period. The name evokes coastal imagery and has a naturally pleasant sound. While it can stand alone as a given name, Shelly continues to serve as a nickname for Michelle, Rochelle, or Shelby. Though its peak popularity has passed, Shelly maintains an unpretentious charm and familiarity. The name's association with seashells gives it a subtle nature connection that appeals to parents drawn to ocean themes.

The last name of Finnish moderne designer/architect makes an original, creative choice with an unexpected water-related meaning.

The name of the father of the sea nymphs -- or one of its shorter forms such as Nereo or Nerio -- would be somewhat easier for a child to carry than Neptune. The name Nereus is largely forgotten but it certainly could rise again along with Atticus and Cassius and other ancient Greek brethren.