King and Prince Names Starting With A

This anglicized spelling of the already anglicized Alistair originates from the Scottish form of Alexander. Some might think it lacks the flair of the -air ending, while others might find it sleeker and simpler. Either way, in the US, it's the second most popular spelling after Alistair, ahead of both Alasdair and Alastair, while in the UK, it is in use, but least preferred of the four.

Aljaž was originally derived from a Slovene surname, of which the meaning is uncertain. A notable bearer is Aljaž Bedene, a Slovenian professional tennis player.

This extra-L variation of Alan isn't quite as popular in the US as the original. Both spellings remain popular in Ireland and England.

Derived from the personal name Adalhard.

Allen is the spelling of this name -- other common spellings are Alan and Allan -- most associated with the surname; it might also be the most appropriate if you're trying to steer clear of Al as a nickname, as this can easily offer you Len or Lenny as options.