What is a Kahili?

A kāhili is a symbol of the aliʻi chiefs and families of the Hawaiian Islands. It was taken by the Kamehamehas as a Hawaiian royal standard and used by the Royal Families to indicate their lineage. Only the ali'i had the right to possess kāhili; It was considered a staff of state. A paa-kahili (kāhili bearer) followed the ali'i everywhere he/she went. The standard could be used as a fly-brush and waved over the sleeping noble. 
The owners of The King Kamehameha Golf Club & Kāhili Golf Course decided to name this location 'Kāhili' to show honor to the Great King Kamehameha.  They felt that there is no other name great enough to place next to his namesake golf course. 

 
Maui's own beloved queen kaahumanu holding her kahili proudly.  painting by her kane

Maui's own beloved queen kaahumanu holding her kahili proudly.  painting by her kane