Big Badja Hill, or Big Badga Mountain, a mountain on the Great Dividing Range, is located in the Southern Tablelands region of New South Wales, Australia, 47 kilometres (29 mi) north-east of Cooma.

With an elevation of 1,363 metres (4,472 ft) above sea level,[1] the mountain is situated on the western edge of Deua National Park.

[2] Plants found nearby are the Big Badja Gum and Kunzea badjaensis, a small myrtle with heads of white flowers on the ends of the branches.

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