Jacelyn Tay Siew Cheng is a Singapore actress. She was prominently a full-time Mediacorp artiste from 1995 to 2006. She left Mediacorp after her contract expired, choosing not to renew it.

After penning two best-selling books – “Feel Good Look Good with Jacelyn” & “Make-up for Asian Women” in 2004 and 2005 respectively, Jacelyn further pursued a new career in the wellness industry in 2006 by setting up Body Inc. Holistic Wellness Centre. She is currently a health coach, nutrition consultant, registered BFR Practitioner and founder of 3 Body Inc. outlets in Singapore. Body Inc. focuses on detox, weight management, antiquing, skin rejuvenation and holistic health.