| Shōgo Arai | |
| Native Name Lang: | ja |
| Office: | Governor of Nara Prefecture |
| Term Start: | 3 May 2007 |
| Term End: | 2 May 2023 |
| Predecessor: | Yoshiya Kakimoto |
| Successor: | Makoto Yamashita |
| Office2: | Member of the House of Councillors from Nara |
| Term Start2: | 29 July 2001 |
| Term End2: | 9 March 2007 |
| Birth Date: | 1945 1, df=y |
| Birth Place: | Yao, Osaka, Japan |
| Party: | Liberal Democratic Party |
| Alma Mater: | University of Tokyo |
is a Japanese politician and a former governor of Nara Prefecture in Japan, first elected in 2007. A graduate of the University of Tokyo, he joined the Ministry of Transport, attending Maxwell School of Citizenship and Public Affairs Syracuse University as a ministry official. Leaving the ministry in 2001, he was elected to the House of Councillors in the Diet of Japan (national legislature) for the first time in the same year.