Gender Neutral 3 and 4 Lettered Names

Refers, in literal terms, to a curved line -- as in Martin Luther King, Jr.'s famed "arc of justice." Could also be used as a reference to Joan of Arc -- Arc being, there, derived from her father's name, rather than a place -- or, conceivably, to Noah's Ark.

Beau suggests someone devilishly handsome, with a large measure of southern charm—a nice image to bestow on your boy. Often solely a nickname in the past, it's now standing firmly on its own. Beau has been on the Social Security list non-stop since 1969.

The simple and attractive Bryn is well used for boys in Wales, and does have a history as a male name in the US, although both Bryn and Brynn are currently far more popular for girls.

Cal is a nickname style name that feels as friendly and calm as it does cool and breezy. While its longer forms have proved more popular over the years, Cal as a stand alone has dropped on and off of the US Top 1000 since the 1880s.

Laid-back and humble, with a distinctive down-home charm.

As a name for boys, Esra is usually considered a spelling variation of the Biblical Ezra. Esra has a separate life as a Turkish girls' name.

In English, a fen is a wetland fed by surface and/or groundwater. In Dutch and Frisian, it's a traditional diminutive of names containing the element frid, meaning "peace". Either way, Fen makes a fresh alternative to fashionable Finn.

Great middle name choice for music lovers or those with Scottish roots, also spelled Fyfe.

Finn is a name with enormous energy and charm, that of the greatest hero of Irish mythology, Finn MacCool (aka Fionn mac Cuumhaill), an intrepid warrior with mystical supernatural powers, noted as well for his wisdom and generosity.

Fox is one animal name backed by a longish tradition, and then popularized via the lead character Fox Mulder on X Files. Fox is simple, sleek, and a little bit wild, and could make an interesting middle name.

Pronounced zheel, it's a dashing conquistador; as gill, it's the nice and slightly boring guy down the street.

Kai is an internationally flexible name with many possible origins and meanings, growing in popularity in the US and a diverse range of European countries.

Actor Kit Harington, aka the dreamy Jon Snow on Game of Thrones, has given this nickname-name new style and appeal for boys. Actress Jodie Foster used it for her son.

With the rising popularity of Kai, this more phonetic spelling has been gaining traction as well. Kye debuted in the US Top 1000 in 2015, and was one of the fastest-rising names of the year in 2016.

Cool short form of Alexander, fresher than Alex and less trendy than Xander... for now.