Embodiments of the present invention provide a method, system and computer program product for threshold activation of an audio teleconference. In an embodiment of the invention, a method for threshold activation of an audio teleconference is provided. The method includes receiving calls into a conference bridge for an audio conference and determining whether or not a threshold number of calls from corresponding callers have been received for the audio conference. The method also includes initiating the audio conference responsive to a threshold number of callers having called into the audio conference, but prohibiting initiation of the audio conference until the threshold number of callers have called into the audio conference.