A headset mountable microphone shield for obscuring the lips of a wearer of a conventional headset with hands free microphone. The headset mountable microphone shield includes a shield body which defines a planar member sized to obscure the mouth of a person and which is integrated with a clip member which defines an elongated limb with a front side and a back side. The clip member is attachable to a stem which connects a hands free microphone to a conventional headset through a pair of clips on its back side and secured in place with fastening screws which operate in conjunction with the clips. As such, a user can slide the stem into the clips and tighten the fastening screws, thereby wedging the stem against the clip such that it is held in place.