Leptospermum obovatum, commonly known as River Teatree, is a species of shrub that is endemic to south-eastern continental Australia. It has egg-shaped or lance-shaped leaves that are narrower at the base, white flowers usually arranged singly on short side shoots and fruit that remains on the plant until it dies.

It is a densely foliaged shrub that typically grows to a height of about 2 m with thin, firm bark on the older stems. It has aromatic, egg-shaped or lance-shaped leaves that are narrower at the base, 5–20 mm  long and 2–8 mm or more wide on a very short petiole. Flowering mainly occurs from November to January and the fruit is a broadly hemispherical capsule 5–8 mm in diameter and that remains on the plant until it dies.