Carissa tetramera, the sand num-num,[2] is a plant in the dogbane family Apocynaceae.

The specific epithet tetramera means 'four parts', referring to the flower.

[2] Carissa tetramera grows as a shrub up to 3 metres (10 ft) tall.

Its strong-scented flowers feature a white corolla, often tinged pink.

[2] Carissa tetramera is native to Kenya, Tanzania, Zimbabwe, Mozambique, Eswatini and South Africa (KwaZulu-Natal and Northern Provinces).