The Hundred of Mayurra is a cadastral division of the County of Grey in southeastern South Australia.
It was named on 15 July 1869 for an Aboriginal word meaning fern straws.
It is south of the town of Millicent, west of Tantanoola and extends to the coast.
The wind farms are both on the Woakwine Range which runs parallel to the coast.
The historic Drainage District of Mayurra (established 1882) was centred in the north of the hundred and formed the basis of the early local government body, the District Council of Mayurra, later renamed to Millicent.