* Eastern Africa: From South Africa to Somalia
* The Indian Ocean: Along the coast of India, Sri Lanka, Bangladesh, Malaysia, Indonesia, Thailand, and the Philippines
* The Western Pacific: In Australia, Papua New Guinea, and the Solomon Islands
They are particularly abundant in the northern waters of Australia and the Gulf of Aqaba in the Red Sea.
It's important to note that dugong populations are declining due to various threats, including habitat loss, fishing bycatch, and pollution.