伊俄尼得斯（希腊语：Ιωνιδες，拉丁语：Ionides）是希腊神话中四位泉水宁芙的总称。她们是坐落在厄利斯的春之河流—库忒洛斯（Kytheros）的拟人化，人们认为她们的泉水能治疗伤痛。

对她们的崇拜相传为伊翁所倡始。她们的名前缀次出现在保萨尼亚斯的《希腊志》中：

In Greek mythology, the Ionides were a sisterhood of water nymphs. Their individual names were Calliphaea, Synallasis (or Synallaxis), Pegaea and Iasis.

The Ionides dwelt at Elis, where they had a sanctuary near a spring flowing into River Cytherus, and were said to have the power to cure all kinds of disease. Their surname was thought to have come from the name of Ion, son of Gargettus.