Mass Spectroscopy (wanda kuma aka rubuta Mass Spectrometry) wata fasaha ce ta kimiyya da ake amfani da ita don ganowa da auna sifofin sinadarai da kwayoyin halitta. Ya ƙunshi rarrabuwar ions bisa la'akari da ma'auni-zuwa-cajin rabonsu a cikin ɗakin daki a ƙarƙashin rinjayar lantarki da filayen maganadisu. Wannan tsari yana samar da nau'ikan siginar ion, wanda sannan ana bincikar su don tantance abubuwan sinadaran da tsarin samfurin. Mass Spectroscopy ana amfani dashi sosai a fagage daban-daban, gami da sunadarai, biochemistry, likitanci, da kimiyyar muhalli, don aikace-aikace irin su gano magunguna, gano furotin, da lura da muhalli.