The 1915 Manitoba general election was held August 6, 1915 to elect members of the Legislative Assembly of the Province of Manitoba, Canada. The Liberals under Norris won a landslide majority with 40 seats, replacing the Conservative government that had ruled the province since 1899. Roblin denied the charges, but resigned as premier on May 12. Three days later, opposition Liberal leader Tobias Norris was called upon to form a new administration. The house was quickly adjourned, and new elections were scheduled for August.