Donald McNabb was a politician from Alberta, Canada.
In 1890 helped form a committee to raise money to buy books and periodicals and furnishings for the Miner's Library in Lethbridge.
Donald McNabb was the first member of a third party to be elected to the Legislative Assembly of Alberta serving as a Labor member. He was elected in the by-election for Lethbridge in 1908.
During his time in the Legislative Assembly he accomplished another first in Alberta, Bill 8 An Act to amend the Lethbridge Charter would be the first introduced from the opposition and a third party to receive Royal Assent in the legislature. He would also introduce a second bill in the same legislative sitting to get assent, Bill 10 An Act respecting the Galt Hospital.
McNabb ran for re-election in the new Lethbridge City riding, but was defeated.
In 1912, he chaired the meeting that formed the Alberta Federation of Labour.
| Preceded by William Simmons |
MLA Lethbridge 1908–1909 |
Succeeded by John Smith Stewart |