Conn

Con-man.

I can't help but think of a con man when I hear this. Not a bad name, otherwise, but I do prefer the similar-sounding Connor.

As a nickname for Connor - it's bearable.
And a real name - er, ever heard of 'con artist'?

Conn does not sound a real name. It sounds like 'con', as in con artist, con trick, pros and cons. I can't think of a single positive connotation(!)

I've always liked this as a nickname for Connor, and I'm glad to see it's a real name! Great meaning too!

And his twin Proo. But seriously, this name sounds fairly negative.

CON ARTIST comes to mind.

I like this name. It's short and simple, and it doesn't sound too youthful. I like the name Connor, but it's too popular, so this is quite a decent alternative to it. The name is quite plain, but that's okay. One of the names I could consider for a son would be Ewan Conn.