The Tahiti sandpiper or Tahitian sandpiper (Prosobonia leucoptera) is an extinct member of the large wader family Scolopacidae that was endemic to Tahiti in French Polynesia. It was discovered in 1773 during Captain Cook’s second voyage, when a single specimen seems to have been collected, but it became extinct in the nineteenth century. Only one museum specimen is known to exist, held in the Aves collection of Naturalis Biodiversity Center. The bird's name in the Tahitian language was transcribed as toromē.