Charles Stewart, was a Canadian politician who served as the third premier of Alberta from 1917 until 1921. Born in Strabane, Ontario, in then Wentworth County, Stewart was a farmer who moved west to Alberta after his farm was destroyed by a storm. There he became active in politics and was elected to the Legislative Assembly of Alberta in the 1909 election. He served as Minister of Public Works and Minister of Municipal Affairs—the first person to hold the latter position in Alberta—in the government of Arthur Sifton. When Sifton left provincial politics in 1917 to join the federal cabinet, Stewart was named his replacement.

The 1909 Alberta general election was the second general election held in the Province of Alberta, Canada. It took place on March 22, 1909, to elect 41 members to the 2nd Alberta Legislature. The incumbent Liberal Party led by Premier Alexander C. Rutherford achieved a re-election victory, securing a majority government by winning 36 out of the 41 seats in the legislature with just under 60 per cent of the popular vote. The Conservative Party led by Albert Robertson once again formed the official opposition, with only two members, and Robertson himself was defeated in his own seat in High River. The remaining three seats were divided among smaller parties and independent candidates.