Haaniella grayii is a stick insect species native to Borneo. It is a typical representative of the subfamily Heteropteryginae and the largest species of the genus Haaniella. The occasionally used common name Gray's Haaniella refers to the species name.

Heteropterygini is the only tribe within the subfamily of the Heteropteryginae. With 19 representatives described, this subfamily includes the fewest species of the three subfamilies, but includes the largest and most striking species of the family.