Worldwide, an increase in cases and severity of domestic violence (DV) has been reported as a result of the 2019 Coronavirus Disease (COVID-19) pandemic. As one’s language can provide inferences...Show moreWorldwide, an increase in cases and severity of domestic violence (DV) has been reported as a result of the 2019 Coronavirus Disease (COVID-19) pandemic. As one’s language can provide inferences about one’s mental health, this study analyzed word use in a DV online support group, aiming to investigate the COVID-19 pandemic’s impact on the mental health of DV victims. As social support and leisure activities might mitigate the consequences of DV on one’s mental health, their role as protective factors was examined. 5856 posts were collected from a DV support group and from two comparison groups on the social media platform Reddit. Confirmatory analysis was conducted following a registered pre-analysis plan. The results show that DV victims used significantly more linguistic indicators of depression than individuals in the comparison groups. However, linguistic indicators of depression did not increase significantly with the onset of COVID-19. Negative emotion words showed a weak negative correlation with words referring to social support (rho = - .110) and leisure activities (rho = -.137). Similarly, pre-occupation with COVID-19 was associated with using more negative emotion words (rho = .148). Exploratory analysis revealed that mid-pandemic, daily posting frequency in the DV support group was 22% higher than pre-pandemic. It is concluded that DV victims show more linguistic indicators of depression than comparison groups and that these characteristics are stable over time. Further, one’s concern with COVID-19 could contribute to negative emotions, whereas social support and leisure activities could function to some degree as protective factors for victims of DVShow less