Alexander Malcolm Manson (October 7, 1883 – September 25, 1964) was a British Columbia judge and politician in the Liberal Party.

[1][2] After completing a bachelor's degree at the University of Toronto, Manson studied at Osgoode Hall Law School.

[2] After being an unsuccessful candidate in the 1912 provincial election, he represented the district of Omineca in the BC Legislature for five terms from 1916 to 1935.

As Attorney General, he was criticized for his handling of the 1924 Janet Smith murder case, which would damage his political career.

In 1935, he attempted to enter federal politics, running for the Liberal Party of Canada in the riding of Vancouver South, but lost by less than 300 votes to Conservative Howard Charles Green.