Rambai may refer to:

Baccaurea motleyana, a type of plant Kampong Rambai, a village in Mukim Rambai, Brunei Mukim Rambai, a mukim of Brunei Sungai Rambai, a mukim of Malaysia Seri Rambai, a historical Dutch cannon in Penang, Malaysia

See also Ramabai (disambiguation) Rambaiyin Kaadhal (disambiguation)