Sigurður Einarsson may refer to:
Sigurður Einarsson (javelin thrower) (born 1962), former Icelandic javelin thrower Sigurður Einarsson (economist) (born 1960), former CEO and then chairman of failed Icelandic Kaupthing Bank Sigurður Einarsson (handballer) (born 1943), Icelandic former handball player Sigurður Einarsson (footballer) (born 1943), Icelandic former football player