| Type: | Archbishop |
| Honorific-Prefix: | His Excellency |
| Joseph Cheng Tsai-fa | |
| Archbishop Emeritus of Taipei | |
| Appointed: | 24 January 2004 |
| Term End: | 9 November 2007 |
| Predecessor: | Joseph Ti-kang |
| Successor: | John Hung Shan-chuan |
| Other Post: | Apostolic Administrator of Kinmen or Quemoy Islands and Matzu (2004–2007) |
| Previous Post: | Bishop of Tainan (1990–2004) |
| Ordination: | 21 December 1957 |
| Consecration: | 2 February 1991 |
| Consecrated By: | Paul Ch’eng Shih-kuang |
| Birth Date: | 1932 7, df=yes |
| Birth Place: | Hsiamen, China |
| Death Place: | Tainan, Taiwan |
Joseph Cheng Tsai-fa (4 July 1932 – 2 September 2022) was a Taiwanese Roman Catholic prelate.
Cheng was born in Xiamen, Fujian, and was ordained to the priesthood in 1957. He served as bishop of the Roman Catholic Diocese of Tainan, Taiwan from 1991 to 2004 and served as archbishop of the Roman Catholic Archdiocese of Taipei, Taiwan, from 2004 until 2007 when he retired.[1]