Élie-Oscar Bertrand (March 3, 1894 – October 21, 1980) was a businessman and political figure in Ontario, Canada. Bertrand represented Prescott in the House of Commons of Canada as a Liberal member from 1929 to 1949.
He was born in L'Orignal, Ontario in 1894, the son of Louis Bertrand. He married Armande Scott in 1915. He was a merchant at L'Orignal and served as clerk for the municipal council and was mayor from 1922 to 1929. Bertrand was first elected to the House of Commons in a 1929 by-election held after Louis-Mathias Auger resigned his seat. He held the Prescott seat until he was defeated in 1949 by Raymond Bruneau. Shortly afterwards, Bertrand was named to the Canadian Farm Loan Board, a predecessor to Farm Credit Canada, and served until 1960.
| By-election: On Mr. Auger's resignation, 29 August 1929: Prescott | ||||||
|---|---|---|---|---|---|---|
| Party | Candidate | Votes | ||||
| Liberal | Élie-Oscar Bertrand | 5,152 | ||||
| Independent Liberal | Gustave Gustave Évanturel | 3,562 | ||||
| 1930 Canadian federal election: Prescott | ||||||
|---|---|---|---|---|---|---|
| Party | Candidate | Votes | ||||
| Liberal | Élie-Oscar Bertrand | 6,572 | ||||
| Conservative | Edmund Alexander Mooney | 2,326 | ||||
| 1935 Canadian federal election: Prescott | ||||||
|---|---|---|---|---|---|---|
| Party | Candidate | Votes | ||||
| Liberal | Élie-Oscar Bertrand | 6,034 | ||||
| Independent Liberal | Louis-Mathias Auger | 3,620 | ||||
| Conservative | Joseph Saint-Denis | 1,614 | ||||
| 1940 Canadian federal election: Prescott | ||||||
|---|---|---|---|---|---|---|
| Party | Candidate | Votes | ||||
| Liberal | Élie-Oscar Bertrand | 6,431 | ||||
| Independent Liberal | Léandre Maisonneuve | 2,028 | ||||
| National Government | Parnell Tierney | 1,819 | ||||
| 1945 Canadian federal election: Prescott | ||||||
|---|---|---|---|---|---|---|
| Party | Candidate | Votes | ||||
| Liberal | Élie-Oscar Bertrand | 6,623 | ||||
| Progressive Conservative | Louis-Pierre Cécile | 1,753 | ||||
| Bloc populaire | Léandre Maisonneuve | 1,500 | ||||
| Co-operative Commonwealth | Bernard Dupuis | 408 | ||||
| 1949 Canadian federal election: Prescott | ||||||
|---|---|---|---|---|---|---|
| Party | Candidate | Votes | ||||
| Independent Liberal | Raymond Bruneau | 5,380 | ||||
| Liberal | Élie-Oscar Bertrand | 4,148 | ||||
| Progressive Conservative | Joseph Saint-Denis | 1,928 | ||||
Sir Mackenzie Bowell was a Canadian newspaper publisher and politician, who served as the fifth prime minister of Canada, in office from 1894 to 1896.
Champlain is a township in eastern Ontario, Canada, in the United Counties of Prescott and Russell on the Ottawa River. It was formed on January 1, 1998, through the amalgamation of West Hawkesbury Township, Longueuil Township, Town of Vankleek Hill, and the Village of L'Orignal.
Don Boudria, is a former Canadian politician and current senior associate at Sandstone Group, an Ottawa-based executive advisory firm. He served in the House of Commons of Canada from 1984 to 2006 as a member of the Liberal Party of Canada, and was a cabinet minister in the government of Jean Chrétien.
The United Counties of Prescott and Russell is a county located in the Canadian province of Ontario. Its county seat is L'Orignal. The county was created as a result of a merger between Russell County and Prescott County in 1820. It is located in Eastern Ontario, in the wedge-shaped area between the Ottawa River and St. Lawrence River, approximately 55 kilometres (34 mi) east of the City of Ottawa. Under Ontario law, the county is an Upper-tier Municipality.

Rupert Mearse Wells was speaker of the Legislature of Ontario in 1874 to 1879 and served as Liberal MLA for Bruce South from 1872 to 1882. He represented Bruce East in the House of Commons of Canada from 1883 to 1887 as a Liberal.
Ralph Osborne Campney was a Canadian politician.
Aurélien Bélanger was an Ontario political figure. He represented Russell in the Legislative Assembly of Ontario as a Liberal and Independent Liberal from 1923 to 1929 and Prescott as a Liberal from 1934 to 1948.
Joseph-Omer Gour was an Ontario farmer, merchant and political figure. He represented Russell in the House of Commons of Canada as a Liberal member from 1945 to 1959.

Edmond Proulx was an Ontario lawyer and political figure. He represented Prescott in the House of Commons of Canada as a Liberal member from 1904 to 1921 and in the Legislative Assembly of Ontario as an Independent Liberal from 1923 to 1929.

Simon Labrosse was an Ontario businessman and political figure. He represented Prescott in the House of Commons of Canada as an independent Conservative member from 1882 to 1891.
Raymond Bruneau was an Ontario translator and political figure. He was a member of the House of Commons of Canada representing Prescott and defeating the 24-year incumbent Liberal MP, Élie-Oscar Bertrand, to sit as an Independent Liberal from 1949 to 1953. He sat for Glengarry—Prescott as a Liberal from 1953 to 1957.
Joseph Binette was an Ontario farmer, businessman and political figure. He represented Prescott in the House of Commons of Canada as a Liberal member from 1922 to 1925.
Louis-Mathias Auger was an Ontario teacher and political figure. He represented Prescott in the House of Commons of Canada as a Liberal member from 1926 to 1929.
Georges Hector Pharand was an Ontario businessman and political figure. He represented Prescott in the Legislative Assembly of Ontario from 1908 to 1911 as a Conservative member.
Louis-Pierre Cécile was an Ontario lawyer and political figure. He represented Prescott in the Legislative Assembly of Ontario from 1948 to 1967 as a Progressive Conservative member.

William Harty was a businessman and politician in Ontario, Canada. He represented Kingston in the Legislative Assembly of Ontario from 1892 to 1894 and from 1895 to 1901 and Kingston in the House of Commons of Canada from 1902 to 1911 as a Liberal member.

Richard Franklin Preston was an Ontario physician and political figure. He represented Lanark North in the Legislative Assembly of Ontario from 1894 to 1898 and from 1905 to 1919 and Lanark in the House of Commons of Canada from 1922 to 1929 as a Conservative member.
Joseph-Albert Pinard was an Ontario political figure. He represented Ottawa East provincially in the Legislative Assembly of Ontario from 1914 to 1929; as a Liberal until October 1926 and then winning reelection as an Independent-Liberal in the December 1926 election. He represented Ottawa East federally in the House of Commons of Canada from 1936 to 1945 as a Liberal member but was defeated in 1945 and 1949 when he ran as an Independent Liberal.
Alan Cockeram, DSO was a mining executive, military officer and Canadian politician who sat in the House of Commons of Canada in the 1940s. He is best known for having given up his York South seat in order to give Conservative leader Arthur Meighen an opportunity to enter parliament only to see the upstart Co-operative Commonwealth Federation (CCF) defeat Meighen in a by-election.
L'Orignal is a Franco-Ontarian village and former municipality, now part of Champlain Township in eastern Ontario, Canada. Its population in 2016 was 1,450. L'Orignal likely took its name from its location on the Ottawa River once known as Pointe à l'Orignal, where moose crossed the river. It was one of the seigneuries of New France.