| Killingbeck Island | |
| Map: | Antarctica |
| Location: | Antarctica |
| Coordinates: | -67.5667°N -73°W |
| Population: | Uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty System |
Killingbeck Island is a small island lying east of Rothera Point, off the southeast coast of Adelaide Island, Antarctica. It was named by the UK Antarctic Place-Names Committee in 1964 for John B. Killingbeck, a British Antarctic Survey glaciologist in 1960–63.