Bosistoa is a genus of four species of tree in the family Rutaceae endemic to eastern Australia.

Plants in the genus Bosistoa are trees with simple or compound leaves arranged in opposite pairs and lack domatia.

The flowers are bisexual, usually with five sepals fused at the base, sometimes almost for their full length, and five white petals.

The fruit is a single or pair of follicles joined at the base with a woody exocarp.

The species described by Hartley but no longer accepted by the Australian Plant Census are B. brassii, B. monostylis and B.