Yekaterina Nikolayevna Mulyuk-Timofeyeva or Katsiaryna Mikalayeuna Muliuk (; ; born 13 November 1976) is a Belarusian archer. She competed in the individual event at the 2008 and 2012 Summer Olympics and finished in 23rd and 17th place, respectively. She won a silver team medal at the 2013 World Archery Championships.