Boonchu Rojanastien (Thai: บุญชู โรจนเสถียร; RTGS: Bunchu Rotchanasathian, Chinese: 黃聞波, Huang Wenbo[1] born January 20, 1921, Chon Buri Province, Thailand, died March 19, 2007, Bangkok)[2] was a Thai banker.

Boonchu was the eldest of five children born to a Thai Chinese carpenter of Hainanese origin in Chon Buri Province.

He eventually became president of the bank, from 1977 to 1980,[5] and led the institution through expansion and the establishment of branches across Thailand.

He joined Social Action Party and was elected as a Member of Parliament from Prachin Buri Province.

Boonchu eventually joined the Democrat Party and served as a cabinet member and then adviser to the first government of Chuan Leekpai.