Lim Kay Tong or Kay Tong Lim (Chinese: 林祺堂; pinyin: Lín Qí-táng; Pe̍h-ōe-jī: Lîm Kî-tông, born 1954) is a veteran Singaporean film, TV and stage actor. Notably, he starred opposite Sean Penn in Shanghai Surprise (1986), Pierce Brosnan in Noble House (1988) and Claire Danes in Brokedown Palace (1999), and was the lead actor in Growing Up (1996–2001) and Perth (2004). Lim has been called "Singapore's finest actor", "Singapore's best-known actor" and Singapore's answer to thespians Ian McKellen and Alec Guinness.
Lim is a co-founder and board member of TheatreWorks. He played founding Prime Minister Lee Kuan Yew in the film celebrating Singapore's Golden Jubilee,