• 希腊地理学家斯特拉博
• 希腊旅行家保萨尼亚斯
• 希腊历史学家西西里的狄奥多罗斯
• 罗马作家艾利安（Aelian）
• 罗马诗人奥维德

Helike (/ˈhɛlᵻkiː/; Greek:Ἑλίκη, pronounced [heˈlikɛː], modern Greek pronunciation: [eˈliki]) was an ancient Greek city that was submerged by a tsunami in the winter of 373 BC. It was located in Achaea, northern Peloponnesos, two kilometres (12 stadia) from the Corinthian Gulf and near the city of Boura, which, like Helike, was a member of the Achaean League. Modern research attributes the catastrophe to an earthquake and accompanying tsunami which destroyed and submerged the city. In an effort to protect the site from destruction, the World Monuments Fund included Helike in its 2004 and 2006 List of 100 Most Endangered Sites.