Luis "Ka Louie" Diaz Beltran (April 4, 1936 – September 6, 1994) was a Filipino broadcast journalist and newspaper columnist.
After three months of imprisonment, being bankrupt, he bred fighting cocks, calling the champion breed he developed Newshawk.
After President Ferdinand Marcos was overthrown by the EDSA Revolution, Beltran became the editor-in-chief of a new newspaper, the Philippine Daily Inquirer.
Beltran, who openly expressed his belief that the President was lacking in competence, countered that his words were not meant to be taken literally, but Aquino still pursued the case against him and the Star's editor-in-chief Maximo Soliven.
On October 22, 1992, the trial court ruled in Aquino's favor, sentencing the columnist and his editor to 2 years of imprisonment and ordering them to pay 2 million pesos in moral damages.