Mozgovitsa Glacier (Bulgarian: ледник Мозговица|lednik Mozgovitsa, in Bulgarian pronounced as /ˈlɛdnik ˈmɔzɡovit͡sɐ/) is the 10 km long in southeast-northwest direction and 2.5 km wide glacier on the northwest side of Rouen Mountains in northern Alexander Island, Antarctica. It is situated north-northwest of Frachat Glacier and north-northeast of Russian Gap. The glacier drains the north slopes of Pimpirev Peak, flows northwestwards between Senouque Spurs, leaves Rouen Mountains and joins Bongrain Ice Piedmont. The vicinity was visited on 6 and 7 January 1988, by the geological survey team of Christo Pimpirev and Borislav Kamenov (First Bulgarian Antarctic Expedition), and Philip Nell and Peter Marquis (British Antarctic Survey).
The feature is named after Mozgovitsa River in Pirin Mountains, Bulgaria.
Mozgovitsa Glacier is centered at -69.0694°N -71.1278°W.