SS Wimmera was a passenger steamship that was built in 1904 by Caird & Company in Greenock, Scotland for Huddart Parker & Co of Melbourne, Australia. She was sunk on 26 June 1918 following contact with a German mine north of Cape Maria van Diemen, New Zealand, killing 26 passengers and crew.At 10:00 am on 25 June 1918 the ship left Auckland bound for Sydney via and Three Kings Islands. There were 76 passengers and 75 crew aboard.