Mensing is a German surname. Notable people with the surname include: Barbara Mensing (born 1960), German archer Johannes Mensing (1477–1547), German Dominican theologian Jenny Mensing (born 1986), German swimmer Simon Mensing (born 1982), footballer Gladys Mensing, who was a party to the PLIVA, Inc. v. Mensing case decided by the Supreme Court of the United States in 2011 German-language surnames