Donald Cameron Sr. (September 16, 1869 – January 29, 1936) was a farmer, engineer and a provincial politician from Alberta, Canada.

He served as a member of the Legislative Assembly of Alberta from 1921 to 1935 sitting with the United Farmers caucus in government.

He won the seat for his party by sweeping over the incumbent Liberal, Daniel Morkeberg.

The three-way race was very close with Cameron edging Morkeburg out on second preference votes.

[5] Morkeburg did not run for a fourth term in office and retired at dissolution of the assembly in 1935.