In Westeros and beyond there are many noble houses, here they are compiled.
The Crownlands[]
Royal House: Targaryen
Noble Houses: Velaryon, Celtigar, Blackwater, Rykker, Hayford
Dorne[]
Great House: Martell
Noble Houses: Dayne, Blackmont, Yronwood, Manwoody, Qorgyle, Fowler, Uller, Dalt
The Iron Islands[]
Great House: Greyjoy
Noble Houses: Harlaw, Farwynd, Volmark, Tawney, Goodbrother
The North[]
Great House: Stark
Noble Houses: Mormont, Umber, Karstark, Manderly, Reed, Forrester, Whitehill, Moss, Locke, Hornwood
Extinct Houses: Bolton, Dustin
The Reach[]
Great House: Tyrell
Noble Houses: Ambrose, Hightower, Redwyne, Oakheart, Tarly, Ashford
The Riverlands[]
Great House: Tully
Noble Houses: Mallister, Baelish, Bracken, Blackwood, Frey, Vance
The Stormlands[]
Great House: Baratheon
Noble Houses: Swann, Grandison, Estermont, Penrose, Morrigen, Florent, Seaworth
The Vale[]
Great House: Arryn
Noble Houses: Egen, Royce, Hunter, Corbray, Redfort, Mountain Clans
The Westerlands[]
Great House: Lannister
Noble Houses: Marbrand, Lefford, Crakehall, Payne
Knightly Houses: Lorch, Vikary