Don Juan Pond, also called Lake Don Juan, is a small and very shallow hypersaline lake in the west end of Wright Valley (South Fork), Victoria Land, Antarctica, west from Lake Vanda. It is wedged between the Asgard Range in the south and the Dais in the north. On the west end there is a small tributary and a feature that has been described as a rock glacier. Don Juan Pond is the saltiest body of water on earth with a salinity level of over 40%.

Dona Huana dikis ir neliela loti sekla parsala udenstilpe Antarktida, Raita ielejas rietumu gala, 9 km uz rietumiem no Vandas ezera. Dikis ir salaka zinama udenstilpe uz planetas, kuras salums parsniedz 40%. Tas ir vienigais no Antarktidas parsalajiem ezeriem, kas jebkura gaisa temperatura paliek škidra stavokli. Udens aprekinatais kimiskais sastavs pie -51,8°C temperaturas ir 3,72 mol/kg CaCl₂ un 0,5 mol/kg NaCl, kas ir ekvivalenti 413 g CaCl₂ un 29g NaCl uz 1 kg udens.