The 20-year-old midfielder has emerged as one of Holland's brightest talents since making his debut last season.
He's made 23 appearances for his club this term as the race to win the Eredivisie reaches a conclusion.
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According to German outlet Sport 1, scouts from Barcelona and Bayern Munich are keeping tabs on the youngster.
It's claimed representatives watched Van de Beek in last week's Europa League win over Schalke.
Ajax midfielder Donny van de Beek
And he is expected to be a target for both clubs in the summer.
Van de Beek is understood to have a contract with Ajax until 2020.