Nepenthes treubiana (/nɪˈpɛnθiːz trɔɪbiˈɑːnə/; after Melchior Treub) is a tropical pitcher plant native to Western New Guinea and the island of Misool (including a number of smaller islands).

[1][2][3] This species occurs on the cliffs of the McCluer Gulf and in coastal regions of the Fakfak peninsula.

[2] Large subpopulations are now confirmed on Misool.

[1][4] Geographer Stewart McPherson had been unable to find any plants during a prior trip to the island (although he did find N. sp.

[2] Nepenthes treubiana has no known natural hybrids.