Winberg is a surname. Notable people with the surname include:
Carl Winberg (1867–1954), Swedish Communist leader
Caroline Winberg (born 1985), Swedish model
Claes-Ulrik Winberg (1925–1989), Swedish industrialist and business executive
Margareta Winberg (born 1947), Swedish Social Democratic politician
Pernilla Winberg (born 1989), ice hockey player from Sweden