Radio Cristal is a popular AM radio station broadcasting from Guayaquil, Ecuador on 870 kHz. Founded on February 24, 1957 by Carlos Armando Romero Rodas, it has become one of the most traditional and successful radio stations in the country.

Radio Cristal is known for its unique popular style that has maintained its position in Ecuadorian coastal households since its inception. The station focuses on promoting national music and connecting rural and urban listeners. Some of its long-running signature programs include "Desayúnese con las noticias" (Breakfast with the News), "La sorpresa radial de las once" (The Eleven O'Clock Radio Surprise), and "Mañanitas ecuatorianas" (Ecuadorian Mornings).

The station played a significant role in launching the career of famous Ecuadorian singer Julio Jaramillo. Today, Radio Cristal continues to be a vital source of information, entertainment, and cultural programming for listeners in Guayaquil and beyond, maintaining its reputation as "the most popular radio station in Ecuador."