The Davis ministry was the cabinet (formally the Executive Council of Ontario) that led the provincial government of Ontario, Canada from March 1, 1971, to February 8, 1985. Led by the 18th Premier of Ontario, Bill Davis and made up of members of the Progressive Conservative Party of Ontario (PC), its fourteen years long tenure was the longest in the 20th century, and second longest serving ministry of Ontario of all time, second only the Mowat ministry's twenty four years in the late nineteenth century.
The ministry replaced the Robarts ministry following the resignation of Premier John Robarts and Davis' victory at the 1971 PC leadership convention. The ministry inherited a governing mandate from the Robarts ministry earned in 1967. The ministry was sustained by electoral mandates secured by the PC party under Davis' leadership in four general elections: two majority mandates in 1971 and 1981, and two minority mandates in 1975 and 1977. The ministry tenure spanned from the 28th to the 32nd Parliament of Ontario, commanding majority support in the 28th, 29th and 32nd parliaments.
Davis retired from electoral politics and resigned as Premier of Ontario in 1985. He and his ministry were respectively succeeded by Frank Miller, a member of the ministry, and the short-lived Miller ministry, which drew the Progressive Conservative's continual rule of forty-two years to a close.
Composition overview and notable facts Sixty-six individuals served in the Davis ministry over its fourteen years tenure. It started with twenty-four men: seventeen of whom (including Davis himself) have served in the Robarts ministry, and among them three were veterans from the Frost ministry. Davis initially elevated seven new minister, including , who have announced his intention to not seek re-election prior.
When Davis was elected party leader in 1971, the PC caucus' sixty eight members at the time consisted of one woman, Ada Prichard, of Hamilton, who was in her seventies and had announced her intention to retire at the next election. The ministry would usher in first four women cabinet ministers in Ontario history: Margaret Birch (elevated in September 1972), Margaret Scrivener and Bette Stephenson (both elevated in October 1975), and Susan Fish (elevated in July 1983).
Davis commenced the practice of formally conferring the honorary titles Deputy Premier and Chair of Cabinet on selected senior cabinet members. Davis' erstwhile leadership rival turned trusted confidant Bob Welch was named Ontario's first deputy premier in 1977.
Despite the ministry's long lifespan and large rosters of members, it did not prove to be a major talent pipeline for future Progressive Conservative ministries beyond the 32nd parliament. No member of the Davis ministry other than Frank Miller went on to serve as Premier. Only one member, Norm Sterling, ironically one of only three ministers dropped by Miller, served in future ministries when the Progressive Conservatives returned to power. The Miller ministry that followed, despite only lasted four months, included four members who would serve in future ministries, including two future premiers.
Industry Minister John Rhodes' 1978 death from a heart attack while on a trade mission to Iran was, as of June 2026, the last time a member of Ontario cabinet died in office. Memorial service was held in the legislature's grand staircase to allow instead of inside the chamber to allow for greater access by the public. Frank Miller survived a heart attack, ini 1976 while he was health minister.
Given its extended tenure, the ministry unsurprisingly had implemented many policies and measures with lasting impact to the province and its people. It also implemented sweeping realignment of the organizational structure of Government of Ontario to modernize its operations and service delivery. In the process it renamed departments as ministries across the government in 1972. These reorganization efforts defined much of the functional scope of ministries and many key features of the government that Ontarians are familiar with today.
Initial streamlining effort by the ministry eliminated and merged a handful of departments with overlapping scope and brought the total number of functional ministries from twenty-two at the end of the Robarts ministry down to nineteen in April 1972 while trimming the size of cabinet to twenty-two members. However, ministries further proliferated and additional ministers without portfolio were added over the ministry's tenure. The size of the cabinet reach its peak of thirty-one members in July 1983. At the end of the Davis ministry, there were twenty-five line ministries in the Ontario government. Administrative Reorganization Early realignment Davis implemented three one-off adjustments to the ministry in the early months of his premiership prior to the 1971 general election.
The highways and the transport departments were merged to form the Department of Transportation and Communications The energy and resource management department was replaced by the Department of the Environment The university affairs department, a portfolio Davis held himself since its establishment in 1964, was renamed the Department of Colleges and Universities
1972 reorganization Having secured a majority mandate under his own name, Davis formally kickstarted the most sweeping administrative reorganization in Ontario history for the stated purpose of modernizing policy-making and technocratic efficiency in early 1972. The reorganization was prompted by the recommendation of the Committee on Government Productivity (COGP) established in January 1970 that consisted of five senior civil servants of deputy minister rank and four business leaders who were president of major corporations based in Ontario. The committee conducted extensive engagement and studies and tabled ten reports between 1970 and 1973 proposing detailed and sweeping reorganization of the government and modernization of its operation. The first set of interim recommendations on department reorganization were contained in COGP's third report tabled in December 1971.
The reorganization came in multiple phases. A significant recommendation was to group all the portfolio department by policy areas each with a senior policy minister as overseer. Davis acted on the recommendations and in January 1972. The legacy office of “Provincial Secretary and Registrar”, one of the five original offices enacted by the British North America Act of 1867, was to be eliminated, and to be replaced by three provincial secretaries for three distinct policy fields – justice, social development and resources developments. They along with the Treasurer were to function as super ministers coordinating policy development and providing oversight of the various ministries in their grouping. Policy committees of cabinet were realigned to be chaired by these provincial secretaries, and secretariats were established for each to provide analytical and research support to the provincial secretaries and the committees.
Davis put his four former leadership rivals in charge of the four policy areas initially, reflecting the seniority he intended for these provincial secretaries. While powerful positions in principle, they carried no direct operational or policy implementation authorities, leading to much reduced profile for the ministers.
Allan Lawrence, the final rival standing against Davis in the 1971 leadership contest, as Provincial Secretary for Justice Bob Welch, the fourth place leadership rival who emerged as one of Davis most trusted advisors and later named deputy premier for the latter half of Davis’ premiership, as Provincial Secretary for Social Development Bert Lawrence, who placed fifth in the leadership contest, as Provincial Secretary for Resource Development Darcy McKeough, who placed third, was already in place as Treasurer
The second phase was a major cabinet shuffle that took place on February 2, through which the substantive details of the reorganization were unveiled. Other than two ministers who did not seek reelection in 1971, Arthur Wishart and Edward Arunah Dunlop Jr, no incumbent minister was dropped from cabinet and no new minister entered the ministry during the February 1972 shuffle. However, all but two ministers were impacted by this shuffle. All twenty-one ministers, inclusive of the three provincial secretaries, were all of full portfolio minister status following the shuffle. A large number of departments saw some of their key functions or operations units (known as divisions or branches) reassigned or realigned. Some departments were to merge while new departments were spun off from existing departments. The Premier indicated that he further assess the new alignments in the following weeks, and some department names may be subject to further adjustments in the final implementation. The ministers appointed to helm realigned departments were given charge of existing, soon-to-be eliminated departments on a temporary basis between February and April to oversee the implementation of the organizations.
The lack of new faces was seized upon by the opposition and the press for criticism. Premier Davis pledged during the election campaign to include a woman in his cabinet if a Progressive Conservative woman were to be elected. ) Despite two women, Margaret Birch from Scarborough East and Margaret Scrivener from St. David's in downtown Toronto, having been elected in October, neither were included in the new cabinet. The Premier explained that he opted to include neither nor any other new members until they gain more experience in the legislature. Birch was elevated to cabinet later that year in September as a minister without portfolio.
The final phase of the reorganization was formal legislation to implement the change. The final names of the new departments, to be known as ministries, were announced by Premier Davis February 26. Unlike government shuffles in the twenty-first century, in which names of departments were altered frequently or on a transitory basis for short-term communications or marketing purposes and effected through orders-in-council without any legislative scrutiny, the Davis ministry carried out this major reorganization by actual legislative amendments. The throne speech delivered on February 29 promised, “new legislation... for the implementation of these far-reaching recommendations... and Honourable Members will have the opportunity to debate its provisions, both in principle and specific detail.” It further promised the publication of the reports of the Committee on Government Productivity, which consisted of studies and recommendations for emerging issues such as automatic data processing, communications and information, and on human resource utilization. The Government Reorganization Act, 1972 along with other legislations for the establishment of four new ministries were introduced by the Premier personally on March 17, were debated and adopted over the following weeks, and were enacted formally on April 7, 1972.
As a result of the reorganization, nine departments disappeared as a result of amalgamation or dispersal of their programs to other ministries. Eighty-six programs or parts of programs entailing 13,500 people were relocated. At the top level, the 1972 reorganization implemented the following realignment: