Birch is a rarely used nature name that calls to mind the lovely image of the tall, strong but graceful white-barked tree. 
 The best known bearer of the name is former high-ranking Democratic Senator Birch Evans Bayh, who carried the name of his father and was the principal Senate sponsor of the Equal Rights Amendment.
 The birch tree has many notable qualities and uses &mdash; including the making of furniture, paper, canoes, and drums, is considered the national tree of Russia (where it used to be worshiped as a goddess), the state tree of New Hampshire, and has spiritual significance in several cultures.

Birch

Blythe originated as a nickname for an upbeat person, coming from the Old English word bliðe, meaning "merry" or "cheerful." Today the homophone blithe shares the same meaning. Blythe was eventually adapted to a surname before it became a feminine given name.
 
Blythe embodies a cheerful, carefree spirit and could be the next Blair/Blaine/Blake/Brett/Britt, with the advantage that it's clearly pink. It joins other other light-hearted names for girls: Felicity, Hilary.
 Blythe is the middle name of Drew Barrymore—in her case a surname from her rich theatrical history.
 The title of the memorable Noel Coward play Blithe Spirit is taken from Shelley's poetic line, "Hail to thee, blithe Spirit"—a nice tribute to a baby Blythe.

Blythe

A beaming, friendly Irish last-name-first-name waiting to be discovered. 

Calhoun

Many African tribes have a tradition of naming children for the day or time they were born -- Friday, Afternoon -- a practice finding new life in the Western world as word names become more popular. 

This genial Irish surname feels much more current than Donald. 

Donahue

Flynn, a charming Irish surname, is still used only quietly, despite its easygoing, casual cowboy charm, unlike Finn which is a star of this genre. Flynn was the choice of Orlando Bloom and Miranda Kerr for their baby boy, and is also the middle name -- used as his first -- of a son of Miranda's fellow supermodel Elle Macpherson, of Gary Oldman's son Gulliver and Marley Shelton's daughter West.
 Flynn Rider (born Eugene Fitzherbert) is the dashing animated hero of the Disney film "Tangled." On TV's "Breaking Bad", Flynn was what young Walter Jr. tried to rename himself. The name was long associated with the swashbuckling Errol Flynn, inspiration of the phrase "in like Flynn." Some may connect this name to controversial former National Security Adviser Michael Flynn
 Flynn entered the U.S. Top 1000 in 2011, and is a highly popular choice in Australia and New Zealand.

Flynn

Long heard as a last name, as in venerable poet Robert, U.K. talk show host David, British actress Sadie and old Jack Frost, Frost has suddenly entered the scene as a possible first, along with other seasonal weather names like Winter and Snow.
 Some forward-thinking parents are beginning to warm to the icy simplicity of Frost, placing it among the most fitting <a href="https://nameberry.com/list/89/winter-baby-names">names for winter babies</a>.

Frost

Gabriel has become a biblical favorite, an angelic choice that's lighter and less patriarchal than some of his Old Testament brethren. Derived from the Hebrew name Gavri’el, Gabriel is taken from the elements gever, meaning "strong," and ’el, in reference to God.
 
In Abrahamic religions, Gabriel is the archangel who heralded the news of Jesus' birth, and appears in Christian, Jewish and Muslim texts. He presides over Paradise, serving as the angel of mercy, life, joy, judgment, truth and dreams. 
 In addition to all his other responsibilities, Gabriel is the patron saint of broadcasters and diplomats, and he governs Mondays and the month of January, making Gabriel one of the top <a href="https://nameberry.com/list/629/71-wonderful-names-for-january-babies">January baby names</a>. 
 
Gabriel has proven itself a friendly and appealing alternative to Michael, that other, long-reigning archangel. Gabriel enjoys remarkable international popularity, ranking in the Top 100 in countries as diverse as Israel and Iceland, Chile and Croatia. It is currently the Number 1 boys' name in France.
 Parents of Gabriels of varying ages include Mick Jagger and Jerry Hall, Daniel Day-Lewis and Isabelle Adjani, Jason Alexander, Meredith Vieira, and Mia Farrow.

Gabriel

James is one of the classic Anglo-Saxon names, a stalwart through the ages that is more popular—and yes, stylish—than ever today. It recently came out Number 1 in a poll of America's favorite boys' baby names, and is the most common male name, counting people of all ages, in the US.
 James, which reentered the Top 5 in 2016, is a current favorite among fashionable parents looking for a baby name that has both style and substance. Like Henry and Theodore, it manages to combine these two stellar qualities.
 
An English derivation of the Hebrew name Jacob, James is biblical (the name of two apostles in the New Testament), royal (kings of both England and Scotland), and presidential (with more U.S. Chief Executives -- six -- than any other name). The name James is also shared by countless great writers and entertainers.
 
There are fewer Jimmys, Jimbos or even Jamies these days; the most fashionable form of the name is James itself. Several stylish celebrities have chosen it in recent years for their sons, including Sarah Jessica Parker and Matthew Broderick, Liz Phair, Colin Farrell and Isaac Hanson. Brendan Fehr thought out of the box and named his daughter James, which has now become a fashionable middle names for baby girls..
James has some interesting foreign variations: Diego and Jaime (Spanish), Jacques (French), Giacomo (Italian), Hamish (Scottish), Jaako (Finnish), Seamus (Irish), Jaap (Dutch) and Jago (Cornish).
 Along with being one of the most popular first names in the US, James is also one of the <a href="https://nameberry.com/blog/top-last-names-in-the-us">most common American last names </a>.

James

June, a sweetly old-fashioned month name derived from the goddess Juno, was long locked in a time capsule with June Allyson (born Ella) and June Cleaver, but is rising again especially as a middle name. 
 June was a Top 100 name from 1915 to 1941, peaking in 1925 at Number 39. It fell off the U.S. Top 1000 in 1987 and returned in 2008 after a two-decade hiatus. Now, we'd call it one of the vintage girls' names starting with J due for a comeback. Balthazar Getty has a daughter named June and Amanda Peet used it as her daughter Molly's middle name.
 Juni is the Scandinavian version; other related choices are Junia, Juno, Juna and Djuna.

June

Lazarus is a name that looks as if it could possibly be raised from the dead, just like its biblical bearer. Look for it in the next wave of Old Testament revivals that transcend their long-bearded images, the way Noah, Moses, and Abraham have for this generation.
 In the Bible, there are two people named Lazarus, the better known being the brother of Mary and Martha of Bethany whom Jesus raised from the dead. There have been also several saints named Lazarus.
 As a surname, Lazarus is most identified with poet Emma Lazarus, whose words are displayed on the Statue of Liberty.
 Related options are the original Hebrew Eleazar, the Italian and Spanish Lazaro, and the Yiddish form Lazer/Laser, the name of the son in the film The Kids are All Right.

Lazarus

The fame of actress and Aerosmith daughter Liv Tyler helped to infuse life into this short but solid Scandinavian name that was chosen for her daughter by Julianne Moore.
 Liv Tyler was given the name after her mother, Bebe Buell, saw an image of Norwegian actress Liv Ullmann on the cover of TV Guide shortly before her daughter's birth.
 Liv combines the succinct charm of a nickname—people might assume it's short for Olivia—with the solidity of being a classic stand-alone Scandinavian name with a life-force meaning.
 Unlike its popular cousin Olivia, Liv has never risen that high in the US ranks, but it is a Top 100 girls' name in a range of international places, from Scandinavia to Switzerland to Israel.

This name of a character played by Kirsten Dunst in the movie Virgin Suicides, originally a novel by Jeffrey Eugenides, is gaining attention, also thanks to the heroine Lux, Lady of Luminosity in the League of Legends games. Luz is the Spanish version.

Along with August, March is one of the month names perfectly suited to boys. This brisk single-syllable name – which derives from the name of Mars, the Roman god of war – is worth considering as either a first or middle option. As a surname, it brings warm memories of the girls of Little Women, and of twentieth century actor Fredric.

March

After centuries of lagging behind other apostle names Peter and Paul, Mark suddenly caught on in the early 1950s, reaching Number 6 by 1960. It was in the Top 10 from 1955 to 1970 and second only to Michael in popular <a href="https://nameberry.com/search/boys-names/m">boy names starting with M</a>. 
 Mark Twain was, of course, the pen name taken by Samuel Clemens. Prominent current bearers include actor Mark Ruffalo, Mark Wahlberg (the onetime Marky Mark) and Facebook founder Mark Zuckerberg.

Mark

Pearl, like Ruby, has begun to be polished up for a new generation of fashionable children after a century of jewelry box storage. The birthstone for the month of June, Pearl could also make a fresher middle name alternative to the overused Rose. Cool couple Maya Rudolph and Paul Thomas Anderson named their daughter Pearl Minnie, followed by Jack Osbourne, and several celebs have put it in the middle spot, as in Busy Philipps's Cricket Pearl, Jake Owen's Olive Pearl and Caleb Followill's Dixie Pearl .
After being a Top 25 name in the late nineteenth century, Pearl went into a long slide, but is showing signs of a strong comeback -- it reentered the Top 1000 in 2010.
 In Nathaniel Hawthorne's The Scarlet Letter, Pearl is the illegitimate daughter of Hester Prynne, who gives her the name because she is 'her mother's only treasure.'
 Pearl was also the alter ego name of Janis Joplin, tied to singer Pearl Bailey, and---hmm--the birth name of western writer Zane Gray.
 Variations are PERLE and PERLA.

Pearl

Sage is an evocatively fragrant herbal name that also connotes wisdom, giving it a double advantage. It entered the Top 1000 at about the same time for both genders in the early 1990s, but it has pulled ahead for the girls. Toni Collette named her daughter Sage Florence.
 The Greeks and Romans wrote that the smoke from burned sage leaves imparted wisdom, and in the tenth century, Arab physicians said that sage brought about immortality, or at the very least, a long and healthy life.
 In Vampire Diaries, Sage is a beautiful vampire possessing super strength and speed.

Sage

There's definitely a cold front of <a href="https://nameberry.com/list/89/winter-baby-names">names for winter babies</a> moving in, with Summer, Spring and Autumn giving way to Winter--plus North, January, Frost--and Snow. This name feels brisk, fresh, pure, evocative -- and magical. A haunting middle name choice. 
 Rare as a first name, there have been several notable surnamed Snows--including singers Hank and Phoebe, and scientist/novelist C.P. And then there's the dreamy Jon Snow in Game of Thrones.

Snow

Whether it's used as a short form or on its own, this jazzy midcentury name is poised for a comeback along with brothers Ray and Walt.
 More often heard as a surname prefix (e.g. Vincent van Gogh, Dick Van Dyke), Van by itself has had some notable bearers, such as musician Van Cliburn (born Harvey Kevan) and actors Van Johnson (born Charles Van) and Van Heflin (born Emmett Evan). Because of its common connection to surnames, it makes for an interesting middle name option. Van reached as high as Number 265 in 1946.

New to the US Top 1000 in 2015, Wilder is on many parents' possibility lists, one of the new generation of bad boy names growing in popularity. Wilder got a big boost in interest through Goldie Hawn's grandson, born in 2007, via son Oliver.
 Wilder is more familiar as a surname, borne by such notables as authors Laura Ingalls and Thornton, composer Alec, director Billy, and actor Gene. Douglas Wilder was the first African American to be elected Governor of Virginia. Wilder was one of the 10 fastest-rising boys' names of 2016 and is on its way to becoming one of the hottest <a href="https://nameberry.com/search/boys-names/w">baby names starting with W</a>.

Wilder

William is one of the most enduring of classic names for boys. It's also among the most popular boys' names, as American parents see it as being ideally conservative yet contemporary, and hands-down the most popular <a href="https://nameberry.com/search/boys-names/w">baby name beginning with W</a> of all time. 
 For 400 years, William has been second only to John as the most popular name in the English-speaking world. And now of course, it's also a newsy name—thanks to Britain's high-profile Prince William.
 William is derived from the Germanic name Wilhelm, composed of the elements wil, "will," and helm, referring to a helmet or protection. The name was introduced to England by William the Conqueror, with William being the Norman variation of the name. In Central and Southern France, it was translated as Guillaume.
 
In terms of short forms, yesterday's Bills and Billys have given way to today's Wills—or Williams, with no diminutive—though a few hip Billys, including Helena Bonham Carter and Tim Burton's, have surfaced recently. 
 But Irish spinoff Liam is the most stylish William nickname and has now superseded William, becoming the most popular boy name in America. Riding the William bandwagon is the Dutch Willem, which comes with the unique nickname Pim.
 
William has long reigned as a royal name in the U.K. There are tons of worthy namesakes called William, including William Shakespeare, Bill Gates and four U.S. presidents.

William

frustratedauthor's list "Middle Names I'm Digging Right Now" of 21 great name ideas: Birch - William!