Laurentia Tan Yen Yi, P.B.M. (/lɒˈrɛnʃə/ lo-REN-shə; Chinese: 陈雁仪; pinyin: Chén Yànyí, pronounced [tʂə̌n jɛ̂n í]; born 24 April 1979), is a United Kingdom-based Singaporean Para-equestrian competitor. Tan developed cerebral palsy and profound deafness after birth, and moved to the United Kingdom with her parents at the age of three. She took up horse riding at age of five years as a form of physiotherapy. She was first invited to join the Singapore team for the World Para Dressage Championships in 2007, and she did well enough to qualify for the 2008 Summer Paralympics.
At the 2008 Summer Paralympics, Laurentia achieved bronze medals in the Individual Championship and Individual Freestyle Tests (class Ia). These were Singapore's first Paralympic medals and Asia's first equestrian medals at the Paralympic Games. Tan was conferred the Pingat Bakti Masyarakat (Public Service Medal) by the President of Singapore on 20 September 2008. Subsequently, at the 2012 Summer Paralympics, Laurentia won a bronze medal in the dressage Individual Championship Test (class Ia) and a silver medal in the Individual Freestyle Test (class Ia).