1900+ Four Letter Boy Names

The modern Tyge -- also found in other European countries as Tygo and Tyko -- is a spin on the ancient Greek Tycho or Tychon. A famous 16th century Danish astrologer was Tycho Brahe. Tyge may also be thought of as a short form of Tyger, a spelling variation of Tiger.

Sæl is an Old Norse word used as a greeting in modern Icelandic. As an American baby name, Sael is more likely a spin on more popular choices like Gael.

Great Irish middle name choice for Shakespeare lovers.

This form, coming from various elements, has started to take off on its own.

This short form stands alone in its native Netherlands.

Snow is increasing in usage mostly as a girls' name, but hero Jon Snow of Game of Thrones just might nudge it into the boys' column. Currently, there are 12 times as many girls named Snow as boys, but its usage is much higher in middle place.

Unisex name in Israel, ideal for a Hanukkah baby.

Stephen King chose the name Cujo for the rabid St. Bernard character in his 1981 novel by the same name. He based the name off of the alias of William Lawton Wolfe, "Kahjoh", which the media misspelled as Cujo. Wolfe was a member of the Symbionese Liberation Army and one of the people responsible for kidnapping Patty Hearst.

Distinctive though somewhat abrupt, most prominently borne by country singer Hoyt Axton.

Though the mythological Hero was female, this name might prove too big a responsibility for a little guy to shoulder.

Short and curt.

Tavo is a stylish-sounding short form of an antique name.

The most famous Vlad was nicknamed "the Impaler." Enough said.

With its gentle but solid sounds, Musa is a name that feels both dignified and energetic. The Arabic, Turkish, and Persian form of Moses, Musa is popular internationally, from The Netherlands to Turkey to The UK.

A cool, nature-inspired surname for someone who lived near an oak tree or in an oak wood, also spelled Oakes.

In Finnish mythology, Ahti (also known as Ahto) was the sea god.

Variations and elaborations of Ace have been popping up all over the place — Ayce recently broke the Top 2000.

Rust is one of the few color names for boys, sometimes short for Russell. As a diminutive for Russell, it's much more modern and cooler than Rusty. Whether you use it as a nickname or it stands on its own, the meaning refers to the color red.

There have been manly men called Fran, like football great Fran Tarkenton and Hannah's boyfriend in one season of Girls, but that doesn't mean it works for babies anymore of either gender. Pope Francis may have inspired many little namesakes, but they're called Francis or Frances or Francesca....or maybe Frank or Frankie or Franny. Not Fran.