Public interest factors refer to the considerations taken into account by courts when determining whether to dismiss a case based on the doctrine of forum non conveniens. These factors often include the administrative difficulties that arise from having cases in congested venues, the local interest in having localized controversies decided at home, and the avoidance of unnecessary problems in the jury system. By weighing these factors, courts aim to ensure that cases are heard in the most appropriate jurisdiction for both the parties involved and the broader community.