Nicasio "Asiong" Rodriguez Salonga (October 11, 1924 – October 7, 1951), nicknamed the "Hari ng Tondo" or Kingpin of Tondo,[3] was an infamous Filipino gangster whose notorious life had been portrayed in several movie versions in 1961 (by Joseph Estrada), 1977 (by Rudy Fernandez), 1990 and 2011 (both played by George Estregan, Jr.).

Asiong was considered one of the Philippines' public enemies where he reigned and dominated Manila's then-known mob district, Tondo, for several years.

Salonga's name had been linked to illegal possession and sale of firearms, homicide, collection of sum of money from businessmen, and other unknown nefarious cases from which somehow he always managed to squirm out of arrest.

Despite this reputation, Salonga was still considered a hero by many local residents, thus earning him the nickname "Robin Hood of Tondo".

[4] He later reportedly went out of jail, stayed out for a while at the time of that year's presidential elections and played a role in the victory of Manuel Roxas in Nueva Ecija with his group protecting the voters from any interference by the Huks.