A dust cap for a fiber optic connector is disclosed. The fiber optic connector includes a connector body having a first end and second end opposite the first end, and a ferrule positioned at the first end of the connector body. The ferrule holds an optical fiber having an end face. The dust cap includes a housing defining a cavity for receiving the ferrule of the fiber optic connector and a retaining member coupled to the housing. The retaining member is structured to be disposed adjacent to the second end of the connector body when the ferrule is disposed within the cavity to inhibit removal of the fiber optic connector from the dust cap. Additionally, or alternatively, the dust cap may include a mounting member for releasably engaging a support structure.