Marchi is an Italian surname, may refer to:
Alessandro Marchi, Italian footballer
Ettore Marchi, Italian footballer
Giuseppe Marchi, Italian Jesuit archaeologist
Guilherme Marchi, professional bull rider
Jamie Marchi, American actress, voice actress, ADR Director
John Marchi, New York State Senator
Mattia Marchi, Italian footballer
Paolo Marchi, Italian footballer
Sergio Marchi, Canadian diplomat and former politician
Tony Marchi, English footballer
