Wiegmann is the surname of:
Arend Friedrich August Wiegmann (1802–1841), a German zoologist
Arend Joachim Friedrich Wiegmann (1770–1853), a German pharmacist and botanist
Bettina Wiegmann (born 1971), a German athlete
Carl Arend Friedrich Wiegmann (1836–1901), a German malacologist
Casey Wiegmann (born 1973), an American football player
Norman Arthur Wiegmann (1920–2001), an American mathematician and university professor
Paul Wiegmann (born 1952), a Russian-American physicist and university professor