Kardomia odontocalyx is a flowering plant in the family Myrtaceae and grows in northern New South Wales and Queensland.

Kardomia odontocalyx is a shrub to 2 m (6 ft 7 in) high with linear shaped leaves 3.1–4.5 mm (0.12–0.18 in) long, 0.5–0.8 mm (0.020–0.031 in) wide, rounded or notched at the apex, margins smooth, oil glands on the lower surface and on a petiole about 0.5 mm (0.020 in) long.

[3] In 2007 Peter G.Wilson changed the name to Kardomia odontocalyx and the description was published in Australian Systematic Botany.

[4] The specific epithet (odontocalyx) means "toothed calyx".

[5] Kardomia odontocalyx has a restricted distribution in New South Wales near Torrington and Emmaville districts and Queensland on granite hills and outcrops in heath and sclerophyll scrub.