Considering New Zealand’s small size and remoteness, a remarkable number of plant pathogens have been recorded. A complete review of the records of plant viruses, viroids and mollicutes in New Zealand found good documentary evidence for 186 viral diseases, 5 viroids and 6 mollicutes, of which 59 viruses, 3 viroids, and 4 mollicutes have been recorded since publication of the previous complete review in 1989. Based on a lack of sufficient documented evidence, a further 27 viruses, 5 viroid and 3 mollicute records were considered unconfirmed. The confirmed pathogens not only infect agricultural and horticultural crops but some also affect the native flora.