An honorary trust, under the law of trusts, is a device by which a person establishes a trust for which there is neither a charitable purpose, nor a private beneficiary to enforce the trust. While such a trust would normally be void for lack of a beneficiary, many jurisdictions have carved out two specific exceptions to this rule: trusts for the care of that person's pets; and trusts to provide for the maintenance of cemetery plots.

The name of the device derives from the lack of any beneficiary legally capable of enforcing an honorary trust: the trustee is bound by honor, but not by law, to carry out the wishes of the creator of the trust.

Like many states, New York has only recently allowed such trusts by statute.

An asset-protection trust is any form of trust which provides for funds to be held on a discretionary basis. Such trusts are set up in an attempt to avoid or mitigate the effects of taxation, divorce and bankruptcy on the beneficiary. Such trusts are therefore frequently proscribed or limited in their effects by governments and the courts.

The asset-protection trust is a trust that splits the beneficial enjoyment of trust assets from their legal ownership. The beneficiaries of a trust are the beneficial owners of equitable interests in the trust assets, but they do not hold legal title to the assets. Thus this kind of trust fulfills the goal of asset protection planning, for example to insulate assets from claims of creditors without concealment or tax evasion. A creditor's ability to satisfy a judgment against a beneficiary's interest in a trust is limited to the beneficiary's interest in such trust. Consequently, the common goal of asset protection trusts is to limit the interests of beneficiaries in such a way so as to preclude creditors from collecting against trust assets.

Such trusts must be irrevocable (a revocable trust will not provide asset protection because and to the extent of the settlor's power to revoke). Most of them contain a spendthrift clause preventing a trust beneficiary from alienating his or her expected interest in favor of a creditor. The spendthrift clause has three general exceptions to the protection afforded: the self-settled trusts (if the settlor of a trust is also a beneficiary of a trust), the case when a debtor is the sole beneficiary and the sole trustee of a trust, and the support payments (a court may order the trustee to satisfy a beneficiary's support obligation to a former spouse or minor child). The first general exception, which accounts for the majority of asset protection trusts, no longer applies in several jurisdictions. The laws of certain jurisdictions including Alaska, Bermuda, and the Cayman Islands allow self-settled trusts to afford their settlors the protection of the spendthrift clause.