Catharine Gouger Waugh McCulloch (June 4, 1862 – April 20, 1945) was an American lawyer, suffragist, and reformer. She actively lobbied for women's suffrage at the local, state, and national levels as a leader in the Illinois Equal Suffrage Association, Chicago Political Equality League, and National American Woman Suffrage Association. She was the first woman elected Justice of the Peace in Illinois.