Laurentia Tan Yen Yi BBM PBM (/lɒˈrɛnʃə/ lo-REN-shə; Chinese: 陈雁仪; pinyin: Chén Yànyí, pronounced [tʂə̌n jɛ̂n í]; born 24 April 1979), is a Singaporean para-equestrian competitor.

On 2 September 2012, Tan won Singapore's first medal at the 2012 Summer Paralympics in London, a bronze in the dressage Individual Championship Test (class Ia).

Her family decided to settle in the United Kingdom as they felt she would be better able to reach her full potential with the medical facilities and specialist educational support available there.

At five years she was unable to sit and walk properly, and took up horse riding at the Diamond Centre for Disabled Riders[4] in London as a form of physiotherapy.

[7] From the age of 18, she stopped horse riding for eight years to pursue an honours degree in hospitality management and tourism at Oxford Brookes University,[2] and for a job as a mental health worker.

Encouraged to participate in dressage competitions in March 2006, she quickly progressed to the Riding for the Disabled Association (RDA) Nationals that year.

On 9 September, riding a 20-year-old chestnut gelding loaned to her named Nothing to Lose (also known as Harvey) at the Hong Kong Olympic Equestrian Centre in Sha Tin, Tan scored 68.80% to claim the bronze medal behind the United Kingdom's Anne Dunham (73.10%) and Sophie Christiansen (72.80%).

Two days after achieving the first medal, Tan collected her second bronze with a score of 70.167% for the Individual Freestyle Event, in which she performed to music with Nothing To Lose.

[10] The president of the Equestrian Federation of Singapore, Melanie Chew, described her performance as "beyond our expectations", and that the wins would aid in promoting local awareness of the sport.

A correspondent to the Straits Times criticized the fact that the newspaper had not elaborated on Tan's performance or what was involved in the event, but had "focused almost primarily on her disability".

[13] Another letter writer to my paper expressed disappointment that less publicity had been given to Tan's achievement compared to the silver medals won by the Singapore women's table tennis team at the 2008 Summer Olympics.

[20] She made it into Today newspaper's list of athletes of the year for 2008 in eighth place,[21] and shared the Her World Young Woman Achiever 2008 award with Paralympian swimmer Yip Pin Xiu.

[22] On 2 September 2012, Tan won Singapore's first medal at the 2012 Summer Paralympics, a bronze in the dressage Individual Championship Test (class Ia).

[29][30] On 20 September 2018, Tan won a silver medal in the Individual Championship grade I of the Federation Equestre Internationale (FEI) at the 2018 World Equestrian Games, with her horse Fuerst Sherlock.