Ha Jung-eun (Hangul: 하정은; born 26 April 1987) is a women's and mixed doubles badminton player from South Korea. Ha was competed at the 2006, 2010 Asian Games, 2008 and 2012 Summer Olympics. Together with the Korean national women's team, they won the Uber Cup in 2010. At the same year, she won the bronze medal at the World Championships in the mixed doubles event.