Orcho Glacier (, ) is long and wide glacier on the east side of Ravelin Ridge on Clarence Island in the South Shetland Islands, Antarctica situated north of Treskavets Glacier and south-southwest of Banari Glacier. It flows eastwards and enters the Southern Ocean north of Gesha Point.
The glacier is named after the Bulgarian rebel leader Orcho Voyvoda (1829-1911).
Orcho Glacier is centred at . British mapping in 1972 and 2009.