Tan Chay Yan (Chinese: 陳齊賢; pinyin: Chén Qíxián; 1871 - 6 March 1916) was a rubber plantation merchant and philanthropist.

Subsequently, Tan started a 22-acre (89,000 m2) rubber estate at Bukit Lintang.

As a philanthropist, Tan also gave $15,000 towards the setting up of a medical college in Singapore.

Tan was also appointed as a Justice of the Peace at age 24, and served on the Malacca Municipal Commission.

Tan left behind his wife, Chua Wan Neo, a tenth generation Nyonya and a descendant of Malaccan Kapitan Chua Su Cheong,[2] six daughters and a son.