The Ensign Autorange 820 is a British medium-format folding rangefinder camera produced by Houghton-Butcher (Ensign), shooting 6x9 frames on 120 roll film. It sat at the upper end of the Ensign folding range when introduced, aimed at serious amateur and professional users seeking a coupled-rangefinder folder.

Auction data for the Autorange 820 is extremely thin: a single UK saleroom hammer record from 2009 shows £1,000, which reflects an unusually clean or specially equipped example rather than a typical price for the model. Because this is a wholesale auction figure and only one data point exists, today's value for a standard user-grade Autorange 820 cannot be reliably stated from sales history alone, and recent comparable results would be needed to establish what one currently sells for.