To provide a pressure sensor, a microphone, a blood pressure sensor and a touch panel enabling stability for detection thereof to be improved.SOLUTION: The pressure sensor according to the embodiment includes a holding part, a first film part and a first detection element. The first film part includes a first edge part and a first end part. The first edge part includes a first extension part extending in a first direction, and a first intersection part extending so as to intersect with the first direction and connected to one end of the first extension part； and is held by the holding part. The first end part is aligned with the first edge part along a second direction intersecting with the first direction. The first film part can deform. The first detection element is fixed to the first film part, and includes a first magnetic layer, a first opposite magnetic layer, and a first intermediate layer provided between the first magnetic layer and the first opposite magnetic layer.SELECTED DRAWING: Figure 1【課題】検知の安定性を向上できる圧力センサ、マイクロフォン、血圧センサ及びタッチパネルを提供する。【解決手段】実施形態によれば、圧力センサは、保持部と、第１膜部と、第１検知素子と、を含む。前記第１膜部は、第１縁部と、第１端部と、を含む。前記第１縁部は、第１方向に沿って延びる第１延在部と、前記第１方向と交差して延び前記第１延在部の一端と接続された第１交差部と、を含み、前記保持部に保持される。前記第１端部は、前記第１方向と交差する第２方向に沿って前記第１縁部と並ぶ。前記第１膜部は、変形可能である。前記第１検知素子は、前記第１膜部に固定され、第１磁性層と、第１対向磁性層と、前記第１磁性層と前記第１対向磁性層との間に設けられた第１中間層と、を含む。【選択図】図１
