"The bush" is a term mostly used in the English vernacular of Australia and New Zealand where it is largely synonymous with hinterland or backwoods respectively, referring to a natural undeveloped area. The fauna and flora contained within this area may be mostly indigenous to the region, although exotic species will often also be present.

The Australian and New Zealand usage of the word "bush" for "forest" or scrubland, probably comes from the Dutch word "bos/bosch" ("forest"), used by early Dutch settlers in South Africa, where it came to signify uncultivated country among Afrikaners. Many English-speaking early European settlers to South Africa later migrated to Australia or New Zealand and brought the term with them. Today, in South Africa Fynbos tends to refer to the heath vegetation of the Western Cape and Eastern Cape.

The term is also widely used in Canada to refer to the large, forested portion of the country. The same usage applies in the US state of Alaska.