This a partial list of museums, galleries, and collections of stained glass. Please add more by replying here.
Museums
Musee du Vitrail, Curzay-sur-Vonne, France
Stained Glass Museum, Krakow, Poland
The Stained Glass Museum Ely, England
Tulsa Stained Glass Museum Tulsa, OK
Galleries
Whiteley Scared Silver and Stained Glass Galleries at the Victoria and Albert Museum, London
The Richard H. Dreihaus Gallery of Stained Glass at the Dreihaus Museum, Chicago