Nepenthes mirabilis (; from Latin mirabilis "wonderful") is a species of carnivorous plant in the family Nepenthaceae. It is sometimes referred to by the common names common swamp pitcher-plant and tropical pitcher plant,.

By far the most widespread of all Nepenthes, its range covers continental Southeast Asia and all major islands of the Malay Archipelago (minus the Lesser Sunda Islands and northern Philippines), stretching from China in the north to Australia in the south. The species exhibits great variability throughout its range. One of the more notable varieties, N. mirabilis var. echinostoma, is endemic to Borneo and possesses an extremely wide peristome.

The conservation status of N. mirabilis is listed as Least Concern on the IUCN Red List. In Hong Kong, it is a protected species under Forestry Regulations Cap. 96A.

According to Matthew Jebb and Martin Cheek, the pitchers of N. mirabilis are used as toy phallocrypts in New Guinea.

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