Mount Pinafore (69°46′S 70°52′W / 69.767°S 70.867°W / -69.767; -70.867) is a prominent peak rising to about 1,100 m lying between Bartok Glacier and Sullivan Glacier situated in the northern portion of Alexander Island, Antarctica.
It is located 6.27 km southeast of Lyubimets Nunatak, 9.26 km south-southeast of Kozhuh Peak, and surmounts Bartók Glacier to the northwest.
The mountain is named by the United Kingdom Antarctic Place-Names Committee in 1977, in association with nearby Gilbert Glacier and Sullivan Glacier after the 1878 comic opera H.M.S.
This article incorporates public domain material from "Mount Pinafore".
This Alexander Island location article is a stub.