Awhale carcass was found near Southend on Friday.
National Parks and Wildlife Service Limestone Coast District Ranger Ross Anderson said the whale carcass on the shores of Rivoli Bay was believed to be a beaked whale.
He said National Parks and Wildlife rangers attended the whale carcass and collected a sample for further analysis by marine mammal experts.
“Dead whales and dolphins wash up on our coast reasonably often after dying at sea as they are washed ashore by prevailing westerly winds,” Mr Anderson said.
Wattle Range Council alerted members of the public to the carcass via social media and asked them to avoid the area.