Ogilvy Renault LLP was a Canadian law firm

Law firm

A law firm is a business entity formed by one or more lawyers to engage in the practice of law. The primary service rendered by a law firm is to advise clients about their legal rights and responsibilities, and to represent clients in civil or criminal cases, business transactions, and other...

 with 450 members in offices in Montreal, Ottawa, Quebec, Toronto, Calgary and London, England. Ogilvy Renault offered services in the areas of business law, litigation and ADR, employment and labour law and intellectual property. Ogilvy Renault's English and French bilingual character and proficiency in both the civil

Civil law (legal system)

Civil law is a legal system inspired by Roman law and whose primary feature is that laws are codified into collections, as compared to common law systems that gives great precedential weight to common law on the principle that it is unfair to treat similar facts differently on different...

 and common law

Common law

Common law is law developed by judges through decisions of courts and similar tribunals rather than through legislative statutes or executive branch action...

 systems led to a national and international presence.

The firm began in 1879 as Carter, Church & Chapleau in Quebec.

Lawyers at the firm have included:

• former Quebec Conservative premier Joseph-Adolphe Chapleau
  Joseph-Adolphe Chapleau
  Sir Joseph-Adolphe Chapleau, PC, KCMG , born in Sainte-Thérèse, Quebec, was a French-Canadian lawyer and politician....
  
  
• former Prime Minister Brian Mulroney
  Brian Mulroney
  Martin Brian Mulroney, was the 18th Prime Minister of Canada from September 17, 1984, to June 25, 1993 and was leader of the Progressive Conservative Party of Canada from 1983 to 1993. His tenure as Prime Minister was marked by the introduction of major economic reforms, such as the Canada-U.S...
  
  
• Conservative senator Michael Meighen
  Michael Meighen
  Michael Arthur Meighen, QC is a Canadian senator, lawyer and cultural patron. A litigation and commercial lawyer who has practiced in Montreal and Toronto, he is a member of the Bars of both Ontario and Quebec....
  
  
• former Conservative senator and Minister of Interational Trade Michael Fortier
  Michael Fortier
  Michael M. Fortier, PC is a former Canadian Minister of International Trade and a former Conservative senator from Quebec...
  
  
• former Chief Justice of Quebec Pierre Michaud
  Pierre Michaud
  Pierre A. Michaud, is a Canadian lawyer, lately Chief Justice of Quebec until his retirement, and currently counsel with the Montreal law firm Ogilvy Renault....
  
  
• former Ontario Attorney-General and Liberal MPP Michael Bryant
  Michael Bryant (politician)
  Michael J. Bryant is former public administrator and former politician in Ontario, Canada. A Harvard-trained lawyer, he was a member of the Legislative Assembly of Ontario, representing the electoral district of St. Paul's for the Ontario Liberal Party from 1999 until 2009...
  
  
• President & CEO of OMERS Strategic Investments Jacques Demers - former managing partner

In 2001, the firm merged with Meighen Demers LLP of Toronto

Toronto

Toronto is the provincial capital of Ontario and the largest city in Canada. It is located in Southern Ontario on the northwestern shore of Lake Ontario. A relatively modern city, Toronto's history dates back to the late-18th century, when its land was first purchased by the British monarchy from...

.

On November 15, 2010, Ogilvy Renault announced it was joining the British firm of Norton Rose

Norton Rose

Norton Rose is an international legal practice offering a business law service from 39 offices across Europe, Asia Pacific, Canada, Africa and the Middle East...

with the merger being completed on June 1, 2011, thus becoming one of the 10 largest law firms in the world.