Nepenthes deaniana

''Nepenthes deaniana'' is a tropical pitcher plant endemic to the Philippines, where it grows at an altitude of 1180–1296 m above sea level. The species is known only from the summit region of Thumb Peak, a relatively small, ultramafic mountain in Puerto Princesa Province, Palawan.

''Nepenthes deaniana'' has no known natural hybrids. No forms or varieties have been described.