Halekiʻi-Pihana Heiau State Monument is a 10-acre (4.0 ha) park containing two important luakini heiau on a high ridge near the mouth of ʻIao Stream in Wailuku, Maui.

Both Halekiʻi and Pihana were associated with important Hawaiian chiefs, have been closely studied by archaeologists,[3] and overlook the fertile Nā Wai ʻEhā ('Four Waters') region irrigated by the Wailuku, Waikapu, Waiheʻe and Waiehu streams.

[4] The heiau complex was added to the National Register of Historic Places on 25 November 1985.

Both were greatly expanded into their present shape between 1662 and 1705, and Pihana was enhanced and reoriented to face the island of Hawaiʻi during a period of interisland warfare between 1684 and 1778.

In 1790, after the forces of Kamehameha I won the very deadly Battle of Kepaniwai,[6] his son Liholiho rededicated Pihana.