ABSTRACT This study focuses on biographies nominated for deletion in the German-language Wikipedia and the encyclopedia’s core principle of notability. Results are presented from quantitative content analyses of deletion nominations, discussions, and decisions from the year 2020. It shows that women’s biographies are more often called into question but not deleted more often than men’s biographies. Additionally, women’s biographies are discussed more controversially. Neither a lack of notability criteria, a lack of external sources, nor individual misogynistic users seem to cause this increased questioning. Instead, the results suggest that the notability of women is collectively surveilled and contested with higher intensity due to biased perceptions. This can be explained by the fact that the concept of notability is not value-free or gender-neutral in the first place—even though it is based on rational discourse. The gender gap in biographies is contentiously discussed by users themselves, too, while overt sexism and gender-based devaluations are effectively countered by engaged users.