| Ni Wen-ya | |
| Native Name Lang: | zh-tw |
| Honorific-Suffix: | MLY |
| Order3: | Vice President of the Legislative Yuan |
| President3: | Huang Kuo-shu |
| Term Start3: | 24 February 1961 |
| Term End3: | 22 February 1972 |
| Predecessor3: | Huang Kuo-shu |
| Successor3: | Liu Kuo-tsai |
| Order1: | President of the Legislative Yuan |
| Vicepresident1: | Liu Kuo-tsai |
| Term Start1: | 22 February 1972 |
| Term End1: | 28 April 1972 |
| Predecessor1: | Huang Kuo-shu |
| Successor1: | himself |
| Term Start2: | 2 May 1972 |
| Term End2: | 18 October 1988 |
| Predecessor2: | himself (acting) |
| Successor2: | Liu Kuo-tsai |
| Order4: | Member of the Legislative Yuan |
| Term Start4: | 18 May 1948 |
| Term End4: | 20 December 1988 |
| Constituency4: | Zhejiang 3rd |
| Order5: | Member of the National Assembly |
| Term Start5: | 1946 |
| Term End5: | 1948 |
| Birth Date: | 1903 3, df=yes |
| Death Place: | Taipei, Taiwan |
| Birth Place: | Yueqing, Qing Dynasty |
| Party: | Kuomintang |
| Spouse: | Shirley Kuo |
| Nationality: | Taiwanese |
| Alma Mater: | Columbia University |
| Occupation: | Politician |
Ni Wen-ya (; 2 March 1903 – 3 June 2006) was a longtime member of the Legislative Yuan, a parliamentary body first based in the Republic of China, and later moved to Taiwan.
Ni was born in Yueqing, Zhejiang, Qing China. He studied for his master's degree at Columbia University in the United States and taught at Great China University.[1]
Ni was elected to represent Zhejiang in the parliament through the 1947 legislative elections.[2] Ni served as Vice President of the Legislative Yuan, before replacing Huang Kuo-shu in the top leadership position as Huang had resigned for health reasons.[1] Ni was replaced as President of the Yuan by Liu Kuo-tsai in October 1988 when he first attempted to resign,[3] but did not relinquish his legislative seat until December 1988, when his resignation was approved.[4]
Ni was married to Shirley Kuo. Ni died on 3 June 2006 at Cathay General Hospital in Taipei, Taiwan.[2] [5]