Rubiah binti Wang (Jawi: رابعة بنت واڠ) is a Malaysian politician who has served as the Member of Parliament (MP) for Kota Samarahan since May 2013. She is a member of the Parti Pesaka Bumiputera Bersatu (PBB), a component party of presently the ruling Gabungan Parti Sarawak (GRS) and formerly another ruling Barisan Nasional (BN) coalitions.