Using marriage banns registers from the Amsterdam City Archives, this study identifies the demographic and spatial behaviour of Norwegian female immigrants to Amsterdam, a city that witnessed rapid economic and population growth during the seventeenth century. The article approaches the topic by making: (1) an ethnic distinction between mixed Norwegian/non-Norwegian unions and homogeneous all-Norwegian unions, as well as (2) a distinction by husband's occupation in these unions, whether at sea or on land. Like all women in Amsterdam, Norwegian women experienced a general pressure in the marriage market around 1675, though a somewhat lower pressure for homogeneous unions with sailors. Occupation may explain the residential pattern, suggesting that work defined neighbourhoods more than ethnicity.