Katherine "Kitty" Marie Blood Hoffman (August 1, 1914 – July 18, 2020) was an American chemist and academic administrator. When she retired from Florida State University, the chemistry department named a laboratory building in her honor. It was dedicated to her again in 2018. Hoffman was awarded an honorary doctorate by Florida State University in 2007.
Hoffman died in Tallahassee Memorial HealthCare on July 18, 2020, aged 105 of COVID-19.