Though as a formal name Rusty is a little, well, rusty, it spent half a century among the Top 1000, departing only in 1995. Only 45 baby boys received the name in the US in one recent year and it's difficult to imagine it as the winning choice of many modern parents. Whether you want an informal name or a spin on a traditional name or even a word name or a name that means red, there are simply too many better options.

Widely used across Europe as a common baptismal name symbolizing spiritual rebirth, Renata, in this country it has an operatic image via Italian-born divas Renata Tebadi and Renata Scotti.

An appellation for the Virgin Mary, "Queen of the apostles." After three years off the US popularity charts, Reina rejoined the list in 2014, though it lags behind alternate spellings Raina, Rayna, and Reyna. It is also used in Yiddish and in Japanese.

Given that Rome is arguably the most important city in European history, it has been used as a first name remarkably little. However, with Roman in the Top 100 and one-syllable choices in vogue, it was only a matter of time before parents started looking toward the city's name as a potential baby name.

Strong and solid, with a touch of foreign intrigue, it's the most popular of the rain-related names, with a variety of pronunciations—RAY-na, rah-EE-na, or RY-na. Alternate spellings Reyna and Rayna currently rank higher in the US.

Attracted attention as the stepmother of Princess Diana.

An Anglicized spelling of the Welsh Rhys, this traditional boys' name got a big boost for girls in the early 2000s, thanks to the high-profile Ms. Witherspoon (who was actually born Laura Jeanne Reese, her second middle being her mother's maiden name). This spelling has been on the decline for boys since 2003, possibly for the same reason, but remains a strong, simple choice which might pose fewer spelling and pronunciation issues outside of the UK than the Welsh original.

Tough, cool, and rugged, Ramsey is a Scottish and English surname that has plenty of potential as a given name. Similar in style to Murray, Murphy, and Rafferty, it was chosen for around 90 boys and 70 girls in the US in a recent year.

Makes the jaunty Remy a little more nicknamey and feminine. Remi is on the rise for both girls and boys, having entered the Top 1000 for boys in 2019.

The name of the sun god of Egyptian mythology could only be used in combination with a longer name.

A strong, straightforward Irish unisex surname, with a merry glint in its eye, Reagan has been leaping up the popularity lists, to become one of the top girl names starting with R. Some will inevitably link it to President Ronald, but spell it Regan and it's a Shakespearean name: a daughter of King Lear.

This is the second most common boys' version of this attractive name, after the Welsh original Rhys. Reese takes the lead on the girls' side. thanks to the famous Ms. Witherspoon.

Best known as a feminine diminutive, Romy is used now for boys too; has a lot of energy and bounce. Can be a short form of Roman or Romeo or a name in its own right. Remy is another related choice, or you might want to go all the way to Romulus.

A strong and stylish alternative to the super-fashionable Luna, with a double background as a Scandinavian and Japanese name. It's the female form of the Nordic male name Rune, meaning "secret lore", and also a Japanese name meaning "moon" – making this an undiscovered celestial choice.

While the Rowan spelling is in the Top 1000 for both boys and girls, this spelling is much more unusual though maintains the same gender split at nearly four boy Rowens for every girl.

Bird name Raven, once a symbol of pride for both African-American and Wiccan parents, is finding new life as a superhero name. Raven Darkholme is the real name of Mystique, heroine of the X-Men films played by Jennifer Lawrence. And there is another Raven superheroine in Teen Titans. Some parents may still choose Raven to signal black pride or mystical powers or maybe even Edgar Allan Poe fandom, but we are guessing most inspiration is coming from the comics.

Rika is most common as a Japanese name, when it means "beautiful village" in one kanji combination. It is also seen as a nickname and given name in Scandinavia, Lithuania, and the Netherlands, where Rika originated as a nickname for names such as Fredrika and Henrika.

Now that names like Cannon and Gunner, fit for comic book heroes, are rising up, Rogue may fit right in.

A strong, if slightly dated sounding choice, Ronald made the US Top 10 in the late 1930s through into the mid-1940s, before it became heavily associated with President Reagan, as well as with the McDonald franchise mascot. More recently, it has appeared in the Harry Potter series, borne by Ronald "Ron" Weasley, while others may immediately think of its rhyme, Donald. All of these factors may work against Ronald making a big resurgence, but popular nickname Ronnie might make others reconsider.

Rio is one of Japan's most popular girls' names, constantly sitting in that country's Top 10. Of course, Rio may also stem from the Portuguese and Spanish word for river, and the Brazilian city Rio de Janeiro. A truly international name for a cosmopolitan baby!