Beruas (alternative spelling: Bruas) is a small town and mukim in Manjung District, Perak, Malaysia.

[1] Beruas is named for a local mangosteen-like tree, Garcinia hombroniana, the "seashore mangosteen", called in the local Malay dialect pokok bruas, which bears fruit called buah bruas.

In ancient times, before the area was known as Perak, there was a Hindu kingdom named Gangga Negara with its capital in Beruas.

Gangga Negara is mentioned in the Malay Annals (Sejarah Melayu) and the kingdom covered present day Beruas, Dinding and Manjung in Perak.

The kingdom is believed to have been founded by Raja Ganjil Sarjuna of Kedah, or the Khmer royalty, around the second century CE.