Cacopsylla tobirae is a psyllid species in the family Psyllidae, first described from Japan in 1964. Like other members of its genus, it is a phloem-feeding insect associated with woody host plants. The species is recorded from multiple regions of Japan including Honshu, Kyushu, and Shikoku. As with related Cacopsylla species, it likely exhibits host-specific feeding relationships and undergoes incomplete metamorphosis typical of psyllids.