Trustor An individual or organization that gifts funds or assets to others by transferring fiduciary duty to a third party trustee that will maintain the assets for the benefit of the beneficiaries. Investopedia Says: Also referred to as a grantor, the trustor is the party that generally donates or gifts assets to others. Related Terms: Beneficiary Blind Trust Exemption Trust Irrevocable Trust Trustee Unit Investment Trust Unit Trust |