The Strangways Land Act, Strangways Act or Waste Lands Amendment Act, were common names for legislation enacted in January 1869 in the colony of South Australia, formally titled An Act to further amend the "Waste Lands Act" 1869. The Act enabled the purchase of land for farmers, allowing for closer settlement in areas of the province suited to more intensive agriculture, rather than vast pastoral runs on uncleared land leased from the government. It is named for Henry Strangways, who was premier and attorney-general when the legislation was passed, and had previously been the Minister for Crown Lands.
It followed the Scrub Lands Act 1866, which enabled long-term leases of crown land between farmers and the government for the first time, but with the proviso that the farmer would clear a certain proportion of the land each year.