Abstract: One form of an in-vehicle communication support device has: a speech recognition unit configured to recognize a speech by a first occupant according to input information from at least one of a camera or a microphone attached in the vehicle; a target position identification unit configured to identify the sitting position of a second occupant, who is a target for the speech by the first occupant; and a notification unit configured to notify the identified second occupant that a speech has been made for the second occupant. When the first occupant speaks to the second occupant, only the second occupant, who is the target for the speech, is notified. Thus, an occupant notices that the occupant is being spoken to, without occupants irrelevant to the conversation being unnecessarily notified.