Eucalyptus forrestiana, commonly known as fuchsia gum or fuchsia mallee, is a species of small tree or mallet and is endemic to an area near Esperance, Western Australia. It has smooth grey bark, narrow oblong to lance-shaped adult leaves, flower buds that are square in cross-section, red at maturity and arranged singly in leaf axils, yellow flowers and four-angled, winged fruit.