Susan Walker Hammer (December 21, 1938 – March 7, 2020) was an American politician and member of the Democratic Party, who served as the mayor of San Jose, California, from 1991 to 1999.

[4] Previous to serving as mayor, she represented San Jose City Council District Three, which encompassed the downtown area of the city, from 1983 to 1991.

[5] Hammer was born in Altadena, California, on December 21, 1938.

She was married to San Jose attorney Philip Hammer, and had three children and six grandchildren.

[6] She was diagnosed with Alzheimer's disease in her later years, and it progressed rapidly over the last several months of her life, leading to her death on March 7, 2020.