A microphone device includes: a microphone main body having a sound collecting part; a windscreen having a windscreen member that covers the sound collecting part, wherein the windscreen member includes: a receiving portion extending inward into the windscreen member from an opening through which the microphone main body is inserted; and a through hole penetrating the windscreen member in a direction intersecting an extending direction of the receiving portion and connected to the receiving portion, at a position different from the opening; and a retaining member connected to the microphone main body through the through hole.