The Belgium international beat off competition from Heerenveen's Bas Dost, Feyenoord's Jordy Clasie and team-mate Christian Eriksen to win the prestigious award, which he will add to the Player of the Year accolade he received from his own club just a few weeks ago.
The 25-year-old Vertonghen played a key role in Ajax claiming their 31st Eredivisie title this season, marshaling a defense which kept 11 clean sheets in total, as well as chipping in with an impressive seven goals.
However, while the center-back still has another year to run on his contract, he is expected to leave Amsterdam this summer, having been repeatedly linked with a move to Tottenham.
Vertonghen, who arrived at Ajax as a teenager from Antwerp outfit Germinal Beerschot, announced on Sunday that he is also considering offers from elsewhere.
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