The Eiao monarch (Pomarea fluxa), is an extinct species of monarch flycatcher in the Monarchidae family. The species is sometimes considered to have been conspecific with the Iphis monarch. It was endemic to French Polynesia. Its natural habitats were subtropical or tropical dry forests, subtropical or tropical moist lowland forests, and subtropical or tropical moist shrubland. It became extinct due to habitat loss. It was last seen in 1977.