The name Trung Bộ was used by the king Bảo Đại when he established administrative level higher than Province in 1945, instead of the Trung Kỳ which recalled the French occupation.
Nama Trung Bộ dipakai oleh raja Bảo Đại saat ia mendirikan tingkat administratif yang lebih tinggi ketimbang Provinsi pada 1945, menggantikan istilah Trung Kỳ yang dipakai penjajah Prancis.