Val is one of those things that I love when I hear it. :-) I wondered about the same thing, how to make it work as a male nickname. I used
Walenty "
Val" in a create-a-family game once and loved it; the inconsistency with the W and V didn't bother me. Ditto using it for
Walery. I like
Valeri /
Valeriy when I say them how I want to but I can't seem to reconcile that with their listed pronounciations on this site, so
Walery comes out ahead.
I quite like
Valerio. I
love Valerian but
Valerio seems less dramatic and (I think) more useable alternative.