Rhododendron stenopetalum is a rhododendron species native to southern Honshu and north-eastern Shikoku, Japan.

[1] It has been placed in subgenus Azaleastrum.

[2] It is a low shrub, with leaves that are 3–5 mm wide by 5 cm long.

Its flowers are pink or lavender-pink.

This Ericaceae article is a stub.