Sigurdur Helgason may refer to:
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Sigurdur Helgason (airline executive) (1921–2009), innovator in low-cost airlines
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Sigurður Helgason (mathematician)
Sigurdur Helgason (born 30 September 1927; Icelandic: ''Sigurður'') is an Icelandic mathematician whose research has been devoted to the geometry and analysis on symmetric spaces. In particular, he has used new integral geometric methods to esta ...
(born 1927), Icelandic mathematician
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Sigurður Helgason (basketball) (born 1940), Icelandic basketball player and coach
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