Nepenthes boschiana, or Bosch's pitcher-plant, is a tropical pitcher plant endemic to Borneo. It is most closely allied to N. faizaliana. Nepenthes borneensis is considered a synonym of this species. Nepenthes boschiana has no known natural hybrids. No valid forms or varieties have been described. Nepenthes boschiana belongs to the loosely defined "N. maxima complex", which also includes, among other species, N. chaniana, N. epiphytica, N. eymae, N. faizaliana, N. fusca, N. klossii, N. maxima, N. platychila, N. stenophylla, and N. vogelii.

Nepenthes faizaliana is a tropical pitcher plant endemic to the limestone cliffs of Gunung Mulu National Park in Sarawak, Borneo. It is thought to be most closely related to N. boschiana.