Kaia Ranch Tropical Botanical Gardens, Tropical botanical garden in Hana, Maui, United States.

Kaia Ranch Tropical Botanical Gardens is a 27-acre (11-hectare) botanical garden on the grounds of the Kaia Ranch Bed and Breakfast at 470 Ulaino Road in Hāna, on the southeastern side of Maui, Hawaii. It holds subtropical and tropical plants from around the world, with an emphasis on fruit trees and flowering plants, plus collections of Polynesian introductions and native Hawaiian species.

Jo Loyce Kaia and her late husband bought 27 acres about 30 years ago and built the garden on the grounds of their Kaia Ranch Bed and Breakfast at 470 Ulaino Road. It was created to spread knowledge of the useful and ornamental plants growing around Maui. The famous National Hawaiian Kahanu Gardens lies close by the road.

The garden displays plants that Polynesians brought to Hawaii alongside native species found on the islands. Visitors can observe how these plants shaped daily life and food traditions for island communities.

The garden is located on Ulaino Road in Hana and is accessible as a private property. Visitors should note its proximity to Kahanu Gardens, which is in the same area and can be visited together.

The garden mixes fruit-bearing trees with flowering plants, showing how tropical species can be both practical and beautiful. This combination reflects the diversity that was once common in Hawaiian gardens.