In Russian the name
Евгений is shortened to
Женя and I've just realized that I'm not aware of the similar short form for Ukrainian
Євген - can we, for instance, treat as such
Женьо? Or is there some another form possible?
UPD: As @Artemix pointed there are some versions mentioned in Wikipedia, the thing is I hadn't heard any of them in real life - so I actually don't know which of them is used more frequently de-facto and which just listed there for the sake of keeping list complete.