Eviction is the removal of a tenant from rental property by the landlord. In some jurisdictions it may also involve the removal of persons from premises that were foreclosed by a mortgagee (often, the prior owners who defaulted on a mortgage).

Depending on the laws of the jurisdiction, eviction may also be known as unlawful detainer, summary possession, summary dispossess, summary process, forcible detainer, ejectment, and repossession, among other terms. Nevertheless, the term eviction is the most commonly used in communications between the landlord and tenant. Depending on the jurisdiction involved, before a tenant can be evicted, a landlord must win an eviction lawsuit or prevail in another step in the legal process. It should be borne in mind that eviction, as with ejectment and certain other related terms, has precise meanings only in certain historical contexts (e.g., under the English common law of past centuries), or with respect to specific jurisdictions. In present-day practice and procedure, there has come to be a wide variation in the content of these terms from jurisdiction to jurisdiction.

The legal aspects, procedures, and provisions for eviction, by whatever name, vary even between countries or states with similar legal structures.