Which island is referred to as the Pineapple Isle?

The island referred to as the "Pineapple Isle" is Lana'i. This nickname originates from the island's historical association with pineapple farming. In the 20th century, Lana'i was primarily used for large-scale pineapple production, and at one point, it was home to the world's largest pineapple plantation. The agricultural practices dramatically shaped the island's landscape and economy.

While other islands in Hawaii also have agricultural histories, none have the same strong association with pineapple as Lana'i. Kaua'i, Maui, and Ni'ihau have their own unique characteristics and agricultural products, but Lana'i's identity as the Pineapple Isle is distinctly tied to its legacy of pineapple cultivation. This historical context solidifies Lana'i's reputation and the significance of the nickname in Hawaiian tourism and culture.