Seah Eu Chin (Chinese: 佘有進; pinyin: Shé Yǒujìn; a.k.a. Siah U-chin, Seah Uchin or Seah You Chin; 1805 – 1883) was an immigrant from South China to Singapore, later becoming a successful merchant, a prominent descendant of Seah Clan and leader in the Overseas Chinese community. He became known as the "Gambier King" for his extensive plantations for pepper and gambier.