| Hara Masatane | |
| Native Name: | 原 昌胤 |
| Birth Date: | 1531 |
| Death Date: | June 29, 1575 |
| Allegiance: | Takeda clan |
| Battles: | Battle of Mimasetoge (1569) Battle of Nagashino (1575) |
| Relations: | Hara Toratane |
was a senior retainer of the Takeda clan during the late Sengoku period of Japanese history. He was known as one of the 'Twenty-Four Generals of Takeda Shingen'.[1]
He was present at the Battle of Mimasetoge in 1569 and was killed in the forefront of the fighting in the Battle of Nagashino in 1575.
Masatane was a relative of Hara Toratane, though from a different branch of the family, and was also a skilled commander.