The Laysan rail or Laysan crake (Porzana palmeri) was a flightless bird endemic to the Northwest Hawaiian Island of Laysan. This small island was and still is an important seabird colony, and sustained a number of endemic species, including the rail. It became extinct due to habitat loss by domestic rabbits, and ultimately World War II. Its scientific name honours Henry Palmer, who collected in the Hawaiian Islands for Walter Rothschild.