Grassi is an Italian surname. Notable people with the surname include:
Achille Grassi, Italian Roman Catholic bishop and cardinal Alberto Grassi, Italian footballer Alex de Grassi, American guitarist Bruno Grassi, Brazilian footballer Carlo Grassi, Italian cardinal Carlo Grassi, Italian partisan Claudio Grassi, Italian tennis player Davide Grassi, Italian footballer Ernesto Grassi, Italian philosopher
Franz Dominic Grassi, German merchant with Italian descent Giacomo di Grassi, Italian fencing master Giorgio Grassi, Italian architect Giovanni Antonio Grassi, Jesuit priest and President of Georgetown University Giovanni Battista Grassi, Italian physician and zoologist Giuseppe Grassi, Italian politician, member of the Italian Liberal Party Giuseppe Grassi, Italian cyclist Giuseppina Grassi, Mexican professional road cyclist Gregorio Grassi, Italian Franciscan friar and bishop Josef Grassi, Austrian portrait and history painter Julio César Grassi, Argentine priest Libero Grassi, Italian clothing manufacturer, killed by the Mafia Lucas di Grassi, Brazilian race-car driver Luigi Grassi, Italian footballer Marco Grassi, Swiss footballer Mitch Grassi, Member of the a cappella group Pentatonix Nicolò Grassi, also known as Nicola Grassi, Italian painter, active in a late-Baroque or Rococo style Orazio Grassi, Italian Jesuit astronomer and mathematician Paolo Grassi, Italian theatrical impresario Raymond Grassi, Canadian former ice sledge hockey player Santiago Grassi, Argentine swimmer Tullio Grassi, Swiss footballer
See also De Grassi (disambiguation) De Grassi Street, a street in Toronto, Ontario, Canada Di Grassi Grassi Museum, a building complex in Leipzig, Germany, home to three museums: the Ethnography Museum, Musical Instruments Museum, and Applied Arts Museum Mount Lawrence Grassi, a mountain located immediately south of the town of Canmore, in Alberta's Canadian Rockies Palazzo Grassi, the former estate of the Grassi family located on the Grand Canal (Venice)