Angus Cameron was an American lawyer, banker, and politician who served ten years as United States Senator from Wisconsin. He also served as the 18th speaker of the Wisconsin State Assembly and served two terms in the Wisconsin State Senate, representing La Crosse County.

The Speaker of the Wisconsin State Assembly is the presiding officer of the Wisconsin State Assembly, the lower house of the Wisconsin Legislature. Article IV of the Constitution of Wisconsin, ratified in 1848, establishes the legislature and specifies the election of officers. The role and responsibilities of the speaker are defined in the Assembly Rules, originally in Rule 1, and also, under the present rules, Rule 3.