Gualtiero Marchesi (; 19 March 1930 – 26 December 2017) was an Italian chef. He was thought to be the founder of modern Italian cuisine. He was born in Milan. He then opened his first restaurant on Via Bonvesin de la Riva in Milan. Within a year he earned his first Michelin star, with another following the next year. It took another seven years, but then he eventually won the distinction of a third Michelin star – the first chef in Italy to do so.