Sneijder has caught the attention of Juventus among other prominent sides, but the 30-year-old's representative Guido Albers insists his client is not looking to leave Istanbul.
Albers also said Sneijder carries a hefty €20 million release in his contract.
"The Galatasaray board told me that they won't sell Sneijder," Albers told Bugun TV. "Wesley loves Galatasaray and the fans. Both he and his wife Yolanthe want to stay in Istanbul.
"If Juve are really interested in him then they'll have to negotiate with the Galatasaray board, not with me.
"Also, any club who wants him will have to pay the €20m release clause in his contract. Not €5m, €10m or €12m."