Nepenthes barcelonae is a tropical pitcher plant native to the Philippine island of Luzon.

[1] It is known from a single mountain in the Sierra Madre range of Aurora Province, where it grows in stunted submontane forest.

The specific type locality was not included in the species description to prevent pressures upon wild populations by hobbyists.

Under Criterion B2ab(iii) of IUCN 2014, the species was assessed informally as Critically Endangered by the authors - it occurred in a single location, with an area of occupancy and extent of occurrence less than 10km².

It is additionally threatened by poaching, and the encroachment of habitat degradation, namely in the form of slash-and-burn agriculture and illegal logging operations, which were present at lower elevations.