The Cheng Nan-jung Liberty Museum (traditional Chinese: 鄭南榕自由紀念館; simplified Chinese: 郑南榕自由纪念馆) is a museum in Songshan District, Taipei, Taiwan. The museum is dedicated to the pro-democracy activist Cheng Nan-jung.

The museum was inaugurated in 1999, on Human Rights Day, in honor of Cheng Nan-jung's lifelong struggle for freedom. It was built on the site of Cheng Nan-jung's self-immolation on 7 April 1989, which was an act of protest against the government's curbing of freedom of speech.

Original manuscripts and objects belonging to Cheng Nan-jung are housed in the museum. There are also several copies of magazines from the Freedom Era.

The museum is accessible within walking distance northeast from Zhongshan Junior High School Station of Taipei Metro.

• List of museums in Taiwan

• Official website (in Chinese)