The social or health effects of gambling problems (GP) affect not only the individuals who gamble, but also their social environment (affected others, AO). This article examines the type and intensity of harms to AO in Germany. Method: The data base is a cross-sectional survey of the population in Germany (16-70 years) on the topic of gambling, which was conducted by telephone or online. Only people without own GP (according to DSM-5) were included in the present analyses (n=12,030). The type and intensity of harms to AO were assessed using the GHS-10-AO instrument and evaluated by means of a descriptive analysis of socio-demographic variables. Results: Overall, 3.2 % (n=348) of respondents stated that they knew at least one person with GP in their immediate social environment. Of these AO, almost half (47.6 %) reported to be affected by 1 to 3 different harms, 15.7 % reported 4 to 6, and 9.6 % reported 7 or more harms. Women are significantly more frequently and more intensely affected by GP in their social environment than men. Conclusions: The findings presented indicate that harms to AO represent a relevant public health problem. Practice and research should focus more on a needs-based prevention-and help-system for this target group in the future.