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.