Rebecca Chan Hoi-yan (Chinese: 陳凱欣; born 19 November 1977) is a member of the Legislative Council of Hong Kong.

As a health ambassador, she stood in the 2018 November Kowloon West by-election and was elected, defeating pro-democrat candidate Lee Cheuk-yan.

[5] As a result, she received 106,457 votes, 13,410 more than veteran pro-democrat candidate Lee Cheuk-yan of the Labour Party, being the second candidate to beat a pro-democrat in a geographical constituency direct election after Vincent Cheng of the Democratic Alliance for the Betterment and Progress of Hong Kong (DAB) in the March by-election in the same constituency.

In the run-up to the election, one of her campaign leaflets was found to contain material plagiarised from work by Kenny Lai Kwong Wai, a Democratic Party Kowloon City District Councillor, urging a review of tourism laws.

Other pro-Beijing district councillors also used the plagiarised material, including Chan's DAB colleague Luk King-kwong and Lam Pok of Kowloon West New Dynamic.