This dataset contains the material for a study of variation in grammatical gender in written Norwegian. The study has its origin in two assignments I received from the Language Council of Norway to map gender variation in Bokmål and Nynorsk. The background data and methods used in the survey are discussed in the project report (see "Related Publication" below). The contents and layout of the data files are explained in the ReadMe file. The data files will be made openly available after the results have been published in a recognised scholarly journal.