Morwell River Reforestation Prison was a minimum security prison located in Morwell, Victoria. It housed approximately eighty prisoners who were serving short sentences or were nearing the end of longer ones. Prisoners undertook reforestation and farming activities.

In May 1961, the Morwell River Reforestation Prison was established on the site of a former Forestry Commission camp. Prisoners renovated the former camp and enlarged the facilities to provide accommodation initially for forty prisoners, and by 1962, eighty prisoners could be housed.

In 1963, a group of prisoners and prison officers from Morwell River Prison began construction of Won Wron Prison (VA 4834), another minimum security reforestation prison established in Gippsland.

Under part IV of the Social Welfare Act 1970 (Act No. 8089), Morwell River Reforestation Prison was proclaimed a prison on 3 May 1972. This was published in the Government Gazette no. 30, 3 May 1972.

Under Schedule 2 of the Corrections Act 1986 (Act no. 117/1986), Morwell River Reforestation Prison was renamed Her Majesty's Prison, Morwell River. It continued as a minimum security prison until 1997, when it closed.

Research note:
While Morwell River closed as a prison in 1997, the appointment of Morwell River as a prison was not revoked until 2005. Under section 10(3A) of the Corrections Act 1986, Morwell River was revoked as a prison on 3 February 2005. This revocation was published in the Government Gazette, no. G5, 3 February 2005.