Deon de Kock (born 11 May 1975) is a South African former rugby union international.
De Kock was born in Empangeni and attended Hoërskool Alberton on the East Rand.
A scrum-half, de Kock was capped twice for the Springboks on the 2001 tour of Europe and the United States. He debuted off the bench against Italy in Genoa and was starting scrum-half against the United States in Houston.
De Kock played in the Super 12 for the Bulls and Lions during his career.