The sentences were all handed down last week, spokesman Thulani Mbambala said in a statement.
One of the culprits, 88-year-old Ntakopo Desi from Lusikisiki, was given a 10-year prison term for the rape of a 72-year-old woman.
The suspects were aged between 17 and 88. In another case 48-year-old Mbulelo Ntapo from Butterworth was given a 10-year jail sentence for the rape of a 13-year-old girl.
Lungile Ndululo, 37, from Grahamstown was sentenced to 10 years’ imprisonment for raping a 42-year-old woman.