Donald McNabb (February 1870 – June 18, 1934) was a politician from Alberta, Canada.
In 1890 he helped form a committee to raise money to buy books, periodicals and furnishings for the Miner's Library in Lethbridge.
Bill 8 An Act to amend the Lethbridge Charter was the first introduced from the opposition and a third party to receive Royal Assent in the legislature.
In the 1909 general election, McNabb ran as a Labour candidate in the new Lethbridge City riding, but was unsuccessful.
[1] In 1912, he chaired the meeting that formed the Alberta Federation of Labour.