Is it possible to have a [name]Finnegan[/name] who does NOT get shortened to [name]Finn[/name]? I love [name]Finnegan[/name], but don’t like [name]Finn[/name] at all. [name]Just[/name] tossing it around. Thanks for your thoughts.
At home you can call him [name]Finnegan[/name] and that might stick with your close friends and family. I think it’d likely turn into a shortened version of the name once he was off at school and such. But with some effort a different shortened name could become the more common one, i.e. [name]Egan[/name].
[name]LOVE[/name] [name]Finnegan[/name]! I don’t mind [name]Finn[/name], but it seems to have gotten a bit too trendy/blah for me personally. I, too, would much prefer just [name]Finnegan[/name]. I agree with @javad’s suggestion of [name]Egan[/name], though–I think that’s pretty cool. 
However, it’s my practice not to use a name with a nn that I hate that seems inevitable. For example, if I loved [name]Lillian[/name], but hated [name]Lily[/name] (I happen to love both. :)), I wouldn’t go near [name]Lillian[/name] as a FN with a 39 and a half foot poll. It seems like [name]Finn[/name] is pretty inevitable. If you could deal with it, then I say go for it, and come up with your own nn, or just insist that he goes by [name]Finnegan[/name]. But if [name]Finn[/name] would drive you absolutely bonkers, I don’t think it’d be worth it in the end.
I love [name]Finnegan[/name], I think people worry about nicknames too much. If you call him [name]Finnegan[/name] from birth for the first five or so years this is what he and everyone else should clal him, however [name]Finnegan[/name] is quite a long name and there’s nothing to say that he will prefer it to his long name. However in my opinion I think [name]Finnegan[/name] in the best long form of [name]Finn[/name] a kid could get