Cheng Wei-yuan
Cheng Wei-yuan (; 20 January 1913 – 3 August 1993) was a politician of the Republic of China (ROC). He was the Ministry of National Defense in 1987-1989.

National Defense Ministry
On 15 March 1998 in Legislative Yuan, Cheng made a statement that personnel of the military were free to join any political party. Nevertheless, they were not allowed to take part in any anti-government protest. Cheng accompanied President Lee Teng-hui on a visit to Singapore in 1989.