THE LONGEST LAST NAME
THE LONGEST LIST OF THE LONGEST STUFF AT THE LONGEST DOMAIN NAME AT LONG LAST

Who has the longest last name in the world?

Finding this one out was a lot harder then we thought, but here is what we came up with:

At 21 letters we found this Gaelic surname:
MacGhilleseatheanaich
 

In 1996 Guinness listed this 17 letter surname as the longest English surname:
Featherstonehaugh

We also managed to find what is possibly the longest full name ever:
Adolph Blaine Charles David Earl Frederick Gerald Hubert Irvin John Kenneth Lloyd Martin Nero
Oliver Paul Quincy Randolph Sherman Thomas Uncas Victor William Xerxes Yancy Zeus
Wolfeschlegelsteinhausenbergerdorff