Sir Robert Williams, 1st Baronet, JP, DL (21 January 1860 – 25 April 1938) was a Scottish mining engineer, pioneering explorer of Africa, entrepreneur, and railroad developer who was chiefly responsible for the discovery of the vast copper deposits in Katanga Province (now incorporated in the Democratic Republic of Congo) and Northern Rhodesia (now Zambia).

Williams planned and executed the creation of the Benguela railway through then Portuguese West Africa (now Angola).

He promoted a market for European goods within southern Africa which was part of a change in trading from barter to currency.

[2] He was also joint founder, with King Leopold II of Union Minière du Haut-Katanga in 1906.

[3] After World War I he bought Park House, a mansion with several hundred acres of land at Drumoak in Aberdeenshire.