I don't think there's a Noxian jungler champion yet.
And no I'm not talking about champions that are already alot better in a certain role/lane.
EDIT: and a support I don't think there's an existing Noxian support champion in this game.
can jungle.
Sion's a fine jungler. LB was a damn good support for a while, still is imo. Swain works like a Brand support.
Sion and Darius work well in the jungle, but just about any champ can be niche'd into the jungle with the right setup. XD
and 
Supports are extremely efficient (In fact they are actually Meta Counters) 
and even work pretty well if you know how to utilize them ( gets 
> 
> Tank, and are 
> > Damage) and utilize the bushes to your advantage (though fair warning: Swain requires a LOT of wards unless they never, ever enter a bush)
works decently as a Jungler but he requires a lot of practice. Noxus could use a devoted Jungler, but in my opinion they also need an easier ADC than 
and more useful than 
.
is one of if not the easiest tank jungler. what i mean is he has fast clears tons of cc good damage and is very tank and he has one of the best initiations/escapes i have seen
Well its implied that Elise was originally a noxian,since she has connections to Leblanc and her lore never mentioned her place of origin.
Also Morgana is still considered noxian(lore rework might change that though) and while she wasn't designed for support,she is now mainly played as a support.
was actually a usable jungler pre-rework. Not so sure about now.
(I think is Noxian) I KNOW CAN! 
I have seen. Only really good people work it though. ):
Specially their own team:
Satan jungle.
