Son Yeon-jae KTM (born 28 May 1994) is a South Korean retired individual rhythmic gymnast.
She is a former member of the South Korean national gymnastics team, based in Taereung, Seoul.
She is the 2014 Asian Games All-around Champion, the 2010 Asian Games all-around bronze medalist, three-time (2016, 2015, 2013) Asian Championships All-around Champion.
She is managed by the IB Sports agency.
Son trained in Russia.
She is also a recipient of the Talent Medal of Korea in 2011.