Isberg is a Swedish surname that may refer to
David Isberg (born 1975), Swedish musician Fríða Ísberg (born 1992), Icelandic novelist, short story writer and poet Jan-Gunnar Isberg (1947–2022), Swedish brigadier general Kerstin Isberg (1913–1984), Swedish swimmer Paul Isberg (1882–1955), Swedish sailor Ralph Isberg (born 1955), American professor Samson Isberg (1795–1873), Norwegian executioner Sixten Isberg (1921–2012), Swedish alpine skier Sophia Isberg (1819–1875), Swedish wood-cut artist Torunn Isberg (born 1949), Norwegian artistic gymnast Ture Isberg, Swedish footballer