Mạc Thái Tông (?-1540), known also by his given name Mạc Đăng Doanh, is the second emperor of the Mac Dynasty of Vietnam from 1530 to 1540.

His father Mạc Đăng Dung is still alive during the first year of his reign and also reigning as “senior emperor”.

His posthumous name is Văn hoàng đế and his era name is Đại Chính.