Lensen Glacier () is a tributary glacier that flows northeast to enter Pearl Harbor Glacier just east of Mount Pearson, in the Victory Mountains of Victoria Land. Named by NZFMCAE, 1962–63, for G.J. Lensen, a member of the New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1957–58, that worked in the Tucker Glacier area.
This article incorporates public domain material from the United States Geological Survey document "Lensen Glacier" (content from the Geographic Names Information System).