Ian George Medcalf AO ED QC (12 July 1918 – 1 May 2011) was an Australian politician who was a Liberal Party member of the Legislative Council of Western Australia from 1968 to 1986.

He returned to Perth to attend Scotch College, and then went on to the University of Western Australia, where he graduated with a law degree in 1941.

He continued with the Citizen Military Forces (now the Australian Army Reserve) after the war's end, and eventually reached the rank of lieutenant-colonel.

Medcalf held those positions throughout the remainder of Charles Court's term as premier, and in March 1980 was also made Leader of the Government in the Legislative Council, replacing Neil McNeill.

[1] Medcalf remained in the ministry when Ray O'Connor succeeded Court as premier in January 1982 (retaining his previous positions), and in December 1982 was also made Minister for Police, replacing Bill Hassell.