It has been suggested that cognitive vulnerability that interacts with negative life events leads to depression. The cognitive vulnerability is an important target for interventions since it might be possible to modify the response to adverse events and thereby prevent depression. Little is known about the influences on cognitive vulnerability but previous research in ALSPAC (Pearson et al., 2013) has found that maternal cognitive vulnerability is associated with later child cognitive vulnerability independently of depressive symptoms in the mother or the child. It is possible this association results from the child’s modeling of the mothers’ cognitive vulnerability. We are not aware though of any previous research that has investigated the influence of paternal cognitive vulnerability on the cognitive vulnerability of the offspring. This study aims to investigate the relationship between paternal cognitive vulnerability and offspring’s cognitive vulnerability at 18 years using the ALSPAC data.