The price jumped to 435 euros ($453) per tonne as the Euronext market opened, up from the previous record of 422 euros reached on Friday.
Global wheat prices have soared on supply fears since Russia's February invasion of agricultural powerhouse Ukraine, which previously accounted for 12 percent of global exports.
The spike, exacerbated by fertiliser shortages and poor harvests, has fuelled inflation globally and raised fears of famine and social unrest in poorer countries.
India, the world's second-largest wheat producer, said on Saturday that it was banning exports after its hottest March on record, with traders needing express government approval to enter into new deals.
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