Stanislao Cannizzaro (1826–1910) was an Italian chemist.

Cannizzaro or Cannizaro may also refer to:

Cannizzaro (surname), people with the name Cannizzaro (crater), a lunar crater named after Stanislao Cannizzaro Cannizaro Park, a public park in Wimbledon, London Cannizzaro reaction, a chemical reaction named after Stanislao Cannizzaro