The Liberal Party of Prime Minister Lester B. Pearson was re-elected with a larger number of seats in the House.

Although the Liberals lost a small share of the popular vote, they were able to win more seats, falling just short of a majority.

However, the Liberals came up two seats short of a majority, largely due to being virtually nonexistent in the Prairies for the second consecutive election.

", increased its share of the popular vote by more than four and a half percentage points, and became the third largest party in the House of Commons.

However, even the combined seat totals of the two factions would not have been enough to prevent the NDP from replacing Social Credit as the third largest party.

Pearson announced his intention to resign as Liberal leader in December 1967 and was replaced the following April by Pierre Trudeau.