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 baby name beginning with W of all time.

Liam is the top boys' name in the US, holding the Number One spot for the past eight years and also ranking as one of the most popular boys' names around the western world.

Willa has become increasingly fashionable, with its combination of Willa (born Wilella) Cather-like pioneer strength and the graceful beauty of the willow tree.

Wilhelmina might once have been condemned as a clunky relic best left in the past, but a steadily increasing number of parents are dusting it off for their 21st century babies. A reasonably popular choice in the 19th century, but out of favor by the 1950s, in the last decade, Wilhelmina has attracted more attention, and was given to around 110 babies in a recent year.

Ansel, primarily associated with the great western photographer Ansel Adams, famed for his magnificent photographs of the Yosemite Valley, could make a creative artist-hero choice. For Adams it was a family name – he was named after his uncle, Ansel Easton. And, in turn, Adams was the namesake of young heartthrob Ansel Elgort, son of a photographer.

Billie is a tomboy nickname name, part of the growing trend for using boyish nicknames for girls and now destined for stardom along with its most famous contemporary bearer, music sensation Billie Eilish.

Cute kid with freckles, bouncing a Spalding ball. Cool couple Helena Bonham Carter and Tim Burton put the name Billy Burton on their son's birth certificate. While the classic William, name of the future king of England, may in fact be German, the nickname Billy along with such other classic short forms as Jim and Joe are authentically English names for boys.

This lovely, quintessentially British appellation, also spelled Rosamond, is the name of a legendary twelfth-century beauty. Rare on these shores, it is more than worthy of importation.

A tiny percentage -- a tenth of one percent -- of babies named Liam in the US are girls. But Liam has been so popular for baby boys for so long, not only in the US but around the western world, that it's hard to imagine it truly becoming a unisex name.

A somewhat solemn appellation, Anselm is a saint's name, connected to the twelfth century archbishop of Canterbury, and in modern times tied to the German neo-expressionist painter Anselm Kiefer.

In the US, Wilma is appears to be eternally fossilized in Bedrock as Fred Flintstone's wife, but in Sweden it's a Top 10 hottie. It did have its moment in the US--from 1912 to 1940 it was a Top 100 name. One notable namesake: track and field star Wilma Rudolph.

Classic Wilhelmina is still the dominant form of this name, but the more intuitive, streamlined Willamina is rising alongside it. The phonetic spelling eliminates some of Wilhelmina's bulk, taking it from geek-chic to modern feminissima.

Most Bills today are dads...or grandpas. The younger Williams are usually nicknamed Will, or called by their full names.

The connection to Freud is a strong one, but this German name has a strong and interesting sound and great nickname potential: Ziggy, Iggy, Sim, Sid...

This dignified German form of William belonged to two German Emperors and Kings of Prussia, as well as a host of other important historical figures. These include composer (Wilhelm) Richard Wagner, philosophers Georg Wilhelm Friedrich Hegel and Friedrich Wilhelm Nietzsche, mathematician Gottfried Wilhelm von Leibniz, and physicist Wilhelm Roentgen, who discovered the X-ray. It now sounds rather dated in Germany, however, having dropped out of the Top 20 there in the late 1920s and continuing to decline since.

It's tempting to think of Gui as the Spanish form of Guy, but it's short for Guillermo.

Intriguing short form of Guilherme, heard in Portugal and Brazil. Guion Bluford was the first African American to go to space.

The short, cute Pim is a Top 100 boys' name in The Netherlands though little-known outside that country. But in a family overrun with Williams, Pim could make an original nickname setting a modern child apart from father Will and grandpa Bill.

William was such a popular name, thanks to the Conquerer, in early England that it gave rise to a range of nicknames, including the distinctly Scottish Wilkie. Heard mostly as a surname these days, it's the middle name of Sarah Jessica Parker and Matthew Broderick's son James and the first name of writer Collins. While Wilkie could make an adorable short form for a little boy, we'd recommend a more substantial full name such as, well, William.

A common surname that was popular as a given name in the late 19th and early 20th century, Willis dropped off the US Top 1000 back in the early 90s, just as alternative William diminutive, Liam, began to skyrocket.