Four Syllable Boy Names 

If Brave and Valor still aren't quite daring enough for you, the name of King Arthur's legendary sword could make for an enchanting middle name for a boy. It may be related to the Irish Caladbolg, meaning "voracious".

Excalibur

In Greek mythology, Hyperion is one of the twelve Titans: children of Gaia (Earth) and Uranus (Sky). Hyperion presides over heavenly light, and is the father of Helios (Sun), Selene (Moon), and Eos (Dawn). 
The name, with its sci-fi appeal, has been well-used in popular culture: from John Keats' poem of the same name to Harry Potter (it’s the middle name of Draco Malfoy’s son, Scorpius). 
Hyperion is also a publishing house, a Classical music label and one of the 53 moons of Saturn.

Hyperion

The name of a mythically handsome youth – loved by Selene, the moon, who bore him fifty daughters. If you're looking for a mythological name for your son, this might make an excellent choice both rare and appealing.

Endymion

 are led in the US, as well as in many other countries, by strong international favorites Alexander and Sebastian, which both make the Top 20 boy names in the US.

Along with Alexander and Sebastian, other 

four syllable names which rank in the Top 100

 in the US are Jeremiah, Santiago, Ezekiel and Leonardo.

Uncommon and unique four syllable boys' names

 we recommend range from underused traditionals like Aloysius and Emmanuel, to long and lovely international beauties like Eliseo and Olivier, to quirky and unique four-syllable boy names like Huckleberry and Thelonious.

to balance out a short surname – or even if you just love long, majestic names for boys – this is the list for you!

Boy names with four syllables, including popular long names such as Alexander and Sebastian as well as unique four syllable names like Huckleberry, with origins, meanings, and popularity (Page 7)

100+ Four Syllable Boy Names

Excalibur

Hyperion

Endymion