The 1918–20 pandemic influenza killed 50–100 million people worldwide, but mortality varied by ethnicity and geography. In Norway, areas dominated by Sámi experienced 3–5 times higher mortality than the country’s average. We here use data from burial registers and censuses to calculate all-cause excess mortality by age and wave in two remote Sámi areas of Norway 1918– 20. We hypothesise that geographic ...