Lim Soe Keng Sia, also known as Liem Soe King Sia, Soe King Sia or Lim Soukeng Sia, was a Pachter, or revenue farmer, in Batavia, capital of the Dutch East Indies, best known for his rivalry with the notorious Betawi playboy Oey Tamba Sia. He acted as administrator of the 'Ngo Ho Tjiang' Kongsi, the most influential consortium of opium monopolists in early to mid-19th century Batavia.

Oey Tamba Sia, also spelt Oeij Tambah Sia, or often mistakenly Oey Tambahsia, was a rich, Chinese-Indonesian playboy hanged by the Dutch colonial government due to his involvement in a number of murder cases in Batavia, now Jakarta, capital of colonial Indonesia. His life has become part of Jakarta folklore, and inspired numerous literary works.