The Marquesas swamphen (Porphyrio paepae) is an extinct species of swamphen from the Marquesas Islands Hiva Oa and Tahuata.

It was originally described from 600-year-old subfossil remains from Tahuata and Hiva Oa.

[2] It may have survived to around 1900; in the lower right corner of Paul Gauguin's 1902 painting Le Sorcier d'Hiva Oa ou le Marquisien à la cape rouge[3] there is a bird which resembles native descriptions of Porphyrio paepae.

Thor Heyerdahl claimed to have seen a similar flightless bird on Hiva Oa in 1937.

[4]