Banaba can have the following meanings:
- Banaba Island is an island in the Pacific Ocean. Most of the indigenous landowners of the island now live on Rabi Island in Fiji
- Banaba ( Lagerstroemia speciosa) is a type of tree that grows in most of Southeast Asia, including Thailand, the Philippines and Malaysia
n. A kind of tree, (taxlink Lagerstroemia speciosa species noshow=1), having medicinal leaves, which grows in Southeast Asia.