Below is a list of white grape varietals and many of the regions they can be found:
Albarino: Spain
Assyrtiko: Greece
Chardonnay: Argentina, Australia, Austria, Burgandy, Canada, Chile, Hungary, New Zealand, South Africa, Spain, United States
Chenin Blanc: California, Loire Valley (France), South Africa
Furmint: Hungary
Gewurztraminer: Alsace (France), Germany
Gruner Veltliner: Austria
Harsleveli: Hungary
Macabea: Spain
Moschofilero: Greece
Olaszrizling: Hungary
Pinot Blanc: Alsace (France)
Pinot Grigio/Pinot Gris: Italy/Canada, France, Hungary, United States)
Riesling: Alsace (France), Austria, Canada, United States
Roditis: Greece
Sauvignon Blanc: California, Chile, Graves (France), Loire Valley (France), New Zealand, Sauternes, South Africa
Semillon: Australia, Graves, Sauternes
Szurkebarat: Hungary
Torrontes Riojano: Argentina
Trebbiano: Italy
Verdejo: Spain
Vidal: Canada
Viognier: California, Rhone Valley (France)