Gilli is a surname. Notable people with the surname include:
Alexander Gilli (1904–2007), Austrian botanist Anna Caterina Gilli, Italian painter Carlotta Gilli (born 2001), Italian Paralympic swimmer Christina Gilli-Brügger (born 1956), Swiss cross-country skier Christoph Gilli (1963–2010), Swiss footballer Filippo Gilli (born 2000), Italian footballer Luciana Gilli (born 1944), Italian actress Markus Gilli (born 1955), Swiss journalist Pierina Gilli (1911–1991), Italian Catholic visionary Yvonne Gilli (born 1957), Swiss politician
See also Gilli (disambiguation)