The Conservative Party of British Columbia, commonly known as the BC Conservatives and colloquially known as the Tories, is a provincial political party in British Columbia, Canada. Since 2024, it has been the main rival to the governing British Columbia New Democratic Party and forms the Official Opposition in the Legislative Assembly of British Columbia. It is led by John Rustad, who was originally elected as a British Columbia Liberal Party MLA in 2005 before being expelled from the Liberal caucus in 2022.

In the first half of the 20th century, the Conservatives competed with the BC Liberal Party for power in the province. During this period, three party leaders served as premier of British Columbia: Richard McBride (1903–1915), William John Bowser (1915–1916), and Simon Fraser Tolmie (1928–1933). Royal Maitland and Herbert Anscomb served as deputy premiers, both during the coalition governments of the 1940s. The party's influence diminished in the second half of the century, with the Conservatives having only a minor presence in the legislature after the 1950s, not having elected a member of the Legislative Assembly (or MLA) in a general election from 1975 to 2024. The party saw a resurgence under Rustad's leadership in the 2024 provincial election, where the party won the second-most seats in its best electoral performance in 72 years.

The Conservative Party of British Columbia was formed in 1900 as the Liberal-Conservative Party, before the province officially embraced partisan politics. The party selected Charles Wilson as its first leader. Several opposition factions contested the 1900 general election against the non-partisan government, but these were generally loose affiliations. In 1902, the Conservative Party convention passed a resolution to stand candidates in the next election.

Party government was introduced on June 1, 1903, by Premier Richard McBride, when he announced the formation of an officially Conservative government. McBride believed that the system of non-partisan government that the province had until that point was unstable and inhibiting development. His Conservatives won the 1903 election, the first fought on the party system, earning a two-seat majority in the British Columbia Legislative Assembly over their rivals, the Liberal Party, as well as various Socialist and Labour MLAs. The Conservatives generally implemented policies mirroring the priorities of the national Conservative Party, which at the time favoured government intervention to help develop industry and infrastructure.

The Conservatives under McBride and his successor, William John Bowser, held power for 13 years until they were defeated by the Liberals in the 1916 election. In November 1926, the Liberal-Conservative Party formally changed its name to the Conservative Party.

The Conservatives returned to power in the 1928 election under the leadership of Simon Fraser Tolmie, winning 35 of 48 seats in the Legislature. The Tolmie government was confronted with the Great Depression, and was wracked by infighting and indecision. The party was in such disarray that, despite being in power, the Conservative provincial association decided not to run any candidates in the 1933 election. Instead, each local association was left to act on its own, endorsing some candidates who ran as Independents, some as Independent Conservatives, and so on. Those supporting Premier Tolmie ran under the 'Unionist' label, while others grouped around former premier William John Bowser and ran as part of the 'Non-Partisan Independent Group'. When Bowser died and the elections in Vancouver Centre and Victoria City were postponed, four Non-partisan and two Unionist candidates withdrew.

The Conservative Party rebounded under Frank Porter Patterson to run a near-full slate in the election of 1937, however they were only able to elect eight MLAs, just one more than the growing Co-operative Commonwealth Federation (CCF) caucus. In the election of 1941, the Conservatives were able to win 12 seats, compared to 21 for the Liberals and 14 for the CCF. Members of the province's business community, who feared the growing strength of the democratic socialist CCF, urged the Liberals and Conservatives to form a wartime coalition government to ensure stability. Then-Conservative leader Royal Maitland agreed, while then-Liberal Premier T.D. Pattullo was opposed; however, Pattullo was forced to resign by his own party in late 1941. John Hart replaced him as Liberal leader and premier on the promise to form a coalition, and did so, making Maitland Deputy Premier and Attorney General shortly thereafter.

In 1942, the BC Conservative Party rebranded as the BC Progressive Conservative Party, following the lead of the federal party. Maitland and Hart served throughout the remainder of World War II and continued their partnership past, running a joint ticket in the 1945 election and winning a majority government of 37 out of 48 seats. However, Maitland died suddenly in 1946 and was replaced by Herbert Anscomb, who became Deputy Premier and Finance Minister in the coalition government. When Premier Hart retired in 1947, the Conservatives pushed for Anscomb to succeed him as Premier, but the Liberals, who had more members in the coalition caucus, insisted that the role remain with a Liberal. Byron Johnson was appointed Premier a short time later, but the conflict strained relations between the two parties and leaders going forward, and caused internal divisions to open up within the Conservatives.