A rochet () is a white vestment generally worn by a Roman Catholic or Anglican bishop in choir dress. It is unknown in the Eastern churches. The rochet in its Roman form is similar to a surplice, except that the sleeves are narrower. In its Anglican form it is a descendant of the traditional albs worn by deacons and priests. In the Roman Catholic tradition, the rochet comes below the knee and its sleeves and hem are sometimes made of lace; in the Anglican tradition, the rochet comes down almost to the hem of the cassock and its sleeves are gathered at the wrist.

The word stems from the Latin rochettum (from the late Latin roccus, connected with the Old High German roch, roc and the A.S. rocc; Dutch koorhemd, rochet, French rochet, German Rochett, Chorkleid, Italian rocchetto, Spanish roquete), means an ecclesiastical vestment.