There are "deep gnomes" and "deep halflings" - neither of which are evil. The gnomes "svirfneblin" are grimmer, more distrustful and more morose than regular gnomes though (and, like duergar and drow, are considered more powerful than standard races and thus requiring a Level Adjustment - counting as a higher level character than hit dice alone would indicate.
Some splatbooks have "deep humans" as a variant too - Underdark, Races of Destiny. And Races of Faerun has "orogs" (deep orcs) which are more powerful than regular orcs.
The Giant did mention duergar once in OOTS context:
http://www.giantitp.com/forums/showt...r#post19821213