Kiat Lim (Chinese: 林伟杰; pinyin: Lín Wěijié; Lim Wee Kiat; born 1992 or 1993 (age 31–32)) is a Singaporean businessman. He is the son of Peter Lim, a Singaporean businessman, and has been the president of Valencia CF since 3 March 2025.

Kiat Lim studied at Nanyang Primary School, and then ACS International for International Baccalaureate, before graduating from University of New South Wales with a bachelor's degree in psychology in 2017. Due to his father's wealth, Lim was among some of the wealthy persons targeted in a 2014 kidnapping in exchange for a S$50 million ransom.

In January 2022, Kiat Lim co-founded ARC, a private social networking app based on non-fungible tokens, with Elroy Cheo of the family behind the edible oil business Mewah International. In February 2022, Kiat Lim launched CO92 DAO, a professional football decentralized autonomous organization, to allow fans to own a stake in the sport.

In July 2022, Lim acquired Singapore-based media company GRVTY Media, which publishes online news platforms Vulcan Post, Millennials of Singapore, and The Daily Ketchup podcast. He was appointed as executive vice-chairman of Thomson Medical, a Singaporean medical group, on 1 September 2022. In 2024, he led Thomson Medical to acquire Vietnam's FV Hospital for about US$381.4 million. He is also currently the chairman of RSP Architects Planners & Engineers, an architecture firm.

On 20 November 2024, Lim committed S$1 million to the Kiat Lim-Shaping Hearts Award, an arts scholarship and bursary programme for children and youth with disabilities.

On 3 March 2025, Lim was appointed as the president of Valencia CF, which is also owned by his father, Peter Lim.

Kiat Lim is married and had a daughter born in 2021 and a son in 2023.