 Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1960 for Igor Sikorsky, American (Russian born) aircraft designer, who has pioneered helicopters since 1909.Silk Glacier

Silk Glacier () is a glacier, 10 miles (16 km) long, draining the east slopes of the Churchill Mountains between Mount Frost and Mount Zinkovich to enter Nursery Glacier.Named by Advisory Committee on Antarctic Names (US-ACAN) for Cdt.