Raxa is a genus of true bugs in the family Pyrrhocoridae. Unlike most pyrrhocorids, members of this genus are predatory, rather than herbivorous.
Raxa nishidai is the specialist predator of Melamphaus faber, a seed-feeding pyrrhocorid bug. R. nishidai is found in West Java, Indonesia.
Raxa collaris is found in Vietnam and Laos.