Kaj Blom (11 October 1925 – 31 August 1989) was a Danish chess player, Danish Chess Championship medalist (1961, 1963, 1964).
From the early 1960s to the end of 1970s, Kaj Blom was one of Danish leading chess players.
He participated many times in the finals of Danish Chess Championships and won three medals: silver (1964) and two bronze (1961, 1963).
In 1961, in Mariánské Lázně Kaj Blom participated in World Chess Championship Zonal Tournament.
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