Mine always have names.  If they didn't, they'd have to have numbers or how would you know who you're talking about, when you discuss them?  If one goes broody, scraped a toe, needs a nail clip, is starting a hard molt, picked on another one, jumped the fence and got into the garden or any number of other things you might tell a spouse about, how would you tell them which chicken it was?  At least names are easier to remember, at least for me.
I've used commonly used English names for an English breed, French names for a French breed, names that refer to their color or temperament.  Sometimes particular behaviors or if they remind me of a character, either fictional or real.  
		
		
	
	
  Things like that always make it easier for me to remember.  If I had several hundred because I was breeding they'd have leg bands, but I've never had that many.  I've never raised more than 50 at a time and I didn't keep all of them.
I will admit to naming an entire batch of white boys headed for freezer camp all the same name.  Elvis.  As a group, they were refereed to as the Elvii.