Chile was represented at the OTI Festival 1990 with the song "", written by Eduardo Carrasco, and performed by Osvaldo Díaz. The Chilean participating broadcasters, (TVN), (UCTV), and (UTV), jointly selected their entry through a national televised final. Díaz had represented Chile in 1975.

National stage (TVN), (UCTV), and (UTV), held a national competition jointly to select their entry for the 19th edition of the OTI Festival. This edition of the national final featured eight songs.

The national final was held at , and was presented by Julio Videla and Katherine Salosny. The show featured a guest performance by Zalo Reyes. It was broadcast on TVN's , UCTV's , and UTV's .

The winner was "", written by Eduardo Carrasco, and performed by Osvaldo Díaz. The first prize was endowed with a monetary amount of CLP$400,000, the second prize of CLP$250,000, and the third prize of CLP$200,000. The festival ended with a reprise of the winning entry.

+ Result of the national final – Chile 1990 Song Artist Songwriter(s) Result "" Osvaldo Díaz Eduardo Carrasco 1

At the OTI Festival On 1 December 1990, the OTI Festival was held at the Circus Maximus of the Caesars Palace in Las Vegas, hosted by Univision, and broadcast live throughout Ibero-America. Osvaldo Díaz performed "" in position 1, with Miguel Zavaleta conducting the event's orchestra. The song was not among the top-three places revealed at the end.

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