USS Glacier may refer to:
, launched as SS Port Chalmers 22.7.1891; purchased, commissioned, renamed Delmonico in 1898 and then Glacier in the same year ; decommissioned and sold in 1922
, a Prince William-class escort carrier, LR number: 6115266 launched in 1942; transferred to the Royal Navy in 1943 and served during World War II as HMS Atheling; struck in 1947
, an , LR number: 5401156, launched in 1944 and struck in 1946
, later (WAGB 4), an icebreaker of unique design, LR number: 6123672, launched in 1954 and struck in 1966