Gertrude Farquharson Boyle Kanno (January 26, 1878 – August 14, 1937) was an American sculptor noted for her portrait busts.

[3] In 1915 she sought divorce with the complaint of Kanno's extreme jealousy and refusal to provide, and the statement that she had "supported herself entirely by her own labor".

Boyle did portrait busts and medallions in plaster and bronze of many famous persons including: Isadora Duncan, Eitaro Ishigaki, Henry Cowell, Uldrick Thompson, Margaret Miller, Teddy Roosevelt, Franklin D. Roosevelt, John Muir, Ida Tarbell, Ezra Meeker, John Swett, Joseph LeConte, David Starr Jordan, Joaquin Miller, Edwin Markham, William Keith, Luther Burbank, Albert Einstein, Charles Erskine Scott Wood, John Fremont, Susan Mills, Horace Traubel, Christy Mathewson and Sidney Gulick.

[5] She was selected by Joaquin Miller to create a portrait of his mother for the University of Oregon and also executed a bust of the notable poet which she titled "The Spirit of the West".

The finished bronze sculpture is located at UC Berkeley in the Earth Sciences & Map Library.