Henry Westman Richardson (July 21, 1855 – October 27, 1918) was a Canadian businessman and Senator.

He was the head of James Richardson and Sons, a commodities firm based in Kingston, Ontario that was founded by his father which handled virtually all of Canada's grain exports to the United Kingdom during World War I. Richardson became president of the firm following the death of his brother, in 1906.

[4] He was appointed to the Senate of Canada on 22 January 1917[5] and sat as a Conservative until his death a year later.

[6] In anticipation of the end of World War I, Ontario Premier, Sir William Hearst, asked, "In the day when Canada has a population equal to the British Isles, does any suggest that she should leave the question of peace and war to a Parliament over which she has no control?".

As a result a number of Senators, including Richardson, signed an agreement to define the role of Canada in a post-war Imperial Age.