Jorien ter Mors (Dutch pronunciation: ; born 21 December 1989) is a Dutch speed skater on both short track and long track. She was the Olympic champion in the 1500 metres and team pursuit (long track) at the 2014 Winter Olympics, and the 1000 metres at the 2018 Winter Olympics.
Ter Mors competed at the 2010 Winter Olympics for the Netherlands. She placed third in her round one race of the 500 metres and was disqualified in the opening round of the 1000 metres, failing to advance. She was also a member of the Dutch 3000 metre relay team, which finished third in the semifinals and won the B Final, ending up fourth overall. Her best overall individual finish, is 23rd, in the 500 metres.
As of 2013, ter Mors has won two silver medals at the World Championships; the first came in 2011, as a member of the Dutch relay team, and the second in 2013 in the 1000 metres. She has also won three gold medals as a member of the Dutch relay team at the European Championships.