Nepenthes × ferrugineomarginata (/nɪˈpɛnθiːz fɛrʊˌdʒɪnioʊmɑːrdʒɪˈnɑːtə/; from Latin ferrugineus "rust coloured" and marginatus "margined") is a natural hybrid between N. albomarginata and N.

[1] It has been recorded from the islands of Borneo and Sumatra.

[2] The type specimen was collected by Shigeo Kurata in Kenukat, West Kalimantan, in 1981.

The name is a nomen invalidum as it was published without a Latin description.

[3] Nepenthes × ferrugineomarginata has the longest binomial name of any plant in the genus.