Victor Lye Thiam Fatt (; born 1962) is a Singaporean politician. A member of the governing People's Action Party (PAP), he has been the Member of Parliament (MP) for the Buangkok–Fernvale South division of Ang Mo Kio Group Representation Constituency (GRC) since 2025.
Early life and education.
Lye was born in 1962 to a Hakka family with 4 siblings. His family rented in Ang Mo Kio until they were allotted a public housing unit.
A Colombo Plan Scholar, Lye achieved a first class honors in Economics at the University of Adelaide.
Career.
Lye was previously head of Singapore sales at Crosby Securities Group. In 1996, he left the company.
Political career.
Lye was appointed in 2012 as PAP branch chairman for the Bedok Reservoir–Punggol division of Aljunied GRC. He first contested in 2015 in the GRC as part of a five-member PAP team, but lost with 49.05% of the vote to the incumbent Workers' Party (WP) after a recount requested by the PAP team.
In 2020, Lye contested Aljunied GRC again, losing to WP with 40.05% of the vote. He was co-opted into the PAP's Central Executive Committee (CEC) in the same year. 
In February 2025, Lye stepped down as PAP branch chairman for Bedok Reservoir–Punggol. During the 2025 general election, he was announced as part of a five-member PAP team for Ang Mo Kio GRC led by Senior Minister Lee Hsien Loong. Lye became a Member of Parliament after the PAP won 78.95% of the vote against the Singapore United Party (SUP) and People's Power Party (PPP).
Personal life.
Lye is a Roman Catholic. He is married with two children.