| Koya Nishikawa | |
| Native Name Lang: | ja |
| Office: | Minister of Agriculture, Forestry and Fisheries |
| Primeminister: | Shinzo Abe |
| Term Start: | 3 September 2014 |
| Term End: | 23 February 2015 |
| Predecessor: | Yoshimasa Hayashi |
| Successor: | Yoshimasa Hayashi |
| Office1: | Member of the House of Representatives |
| Term Start1: | 19 December 2012 |
| Term End1: | 28 September 2017 |
| Constituency1: | Kita-Kantō PR (2014-2017) Tochigi-2nd (2012-2014) |
| Term Start2: | 21 October 1996 |
| Term End2: | 21 July 2009 |
| Successor2: | Akio Fukuda |
| Constituency2: | Kita-Kantō PR (2003-2009) Tochigi-2nd (1996-2003) |
| Birth Date: | 26 December 1942 |
| Birth Place: | Ujiie, Tochigi (now Sakura, Tochigi), Japan |
| Alma Mater: | Tokyo University of Agriculture and Technology |
is a Japanese politician of the Liberal Democratic Party, a member of House of Representatives in the Diet (national legislature). A native of Shioya District, Tochigi he attended Tokyo University of Agriculture and Technology as both undergraduate and graduate students. After college, he worked at the government Tochigi Prefecture from 1967 to 1978. He was elected to the assembly of Tochigi Prefecture for the first time in 1979 and then to the Diet for the first time in 1996.
On 9 December 2020, he resigned as the special adviser to the Cabinet after being involved in a bribery scandal corresponding to a boating trip hosted by a former head of a major egg farm, who was involved in a separate bribery case.[1]