| Native Name: | 萩原 誠司 |
| Native Name Lang: | ja |
| Birth Date: | 1956 4, df=y |
| Birth Place: | Nishiawakura, Aida District, Okayama Prefecture |
| Office: | 4th Mayor of Mimasaka |
| Office1: | Member of the House of Representatives |
| Office2: | 31st and 32nd Mayor of Okayama City |
| Termstart: | 30 March 2014 |
| Termstart1: | 11 September 2005 |
| Termstart2: | 10 February 1999 |
| Termend1: | 21 July 2009 |
| Termend2: | 25 August 2005 |
| Successor2: | Shigeo Takatani |
| Predecessor2: | Keisuke Ataka |
| Predecessor1: | Kazuoi Nose |
| Successor1: | Hiroki Hanasaki |
| Predecessor: | Masao Michiue |
is a Japanese politician of the Liberal Democratic Party, a member of the House of Representatives in the Diet (national legislature) representing the Second District of Okayama Prefecture. A native of Nishiawakura, Okayama and graduate of the University of Tokyo he joined the Ministry of International Trade and Industry in 1980, attending Princeton University in the United States while in the ministry. At age 37, he was the deputy director in MITI's Industrial Policy Bureau.[1] After leaving the ministry in 1998, he was elected for mayor of Okayama, Okayama in 1999, serving for two terms. In 2005 he was elected to House of Representatives for the first time. He represents the 2nd District of Okayama Prefecture, which includes the city of Okayama.