The reaction of European nations to the events at Fort Sumter was primarily Indifference.

European nations generally responded with indifference to the events at Fort Sumter, which signaled the start of the American Civil War. While a few countries monitored the situation closely, many were reluctant to take a stance at first. The conflict was perceived as an internal matter for the United States, and European powers prioritized their interests and political situations. Although there was some sympathy for the Confederacy, especially in Britain and France due to economic connections, the dominant attitude was one of caution. This indifference highlighted the intricacies of international relations and the uncertainties regarding the war's outcome.