Pedro H. Donoso Velasco (26 February 1944 – 8 September 2001) was a Chilean chess FIDE master (FM), three-time Chilean Chess Championship winner (1970, 1977, 1978) and Pan American Chess Championship bronze medalist (1977).
In the Chilean Chess Championships he won three gold medals (1970, 1977, 1978).
Pedro Donoso Velasco participated in the World Chess Championship South American zonal tournament (1975) and the Pan American Chess Championship (1974, 1977), winning a bronze medal in the latter in 1977.
His students included Grandmaster Iván Morovic and other prominent Chilean chess players.
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