A landlord is the owner of a house, apartment, condominium, land, or real estate which is rented or leased to an individual or business, who is called a tenant. When a juristic person is in this position, the term landlord is used. Other terms include lessor, housing provider, and owner. The term landlady may be used for the female owners. The manager of a pub in the United Kingdom, strictly speaking a licensed victualler, is referred to as the landlord/landlady. In political economy it refers to the owner of natural resources alone from which an economic rent, a form of passive income, is the income received.

Renting, also known as hiring or letting, is an agreement where a payment is made for the use of a good, service or property owned by another over a fixed period of time. To maintain such an agreement, a rental agreement is signed to establish the roles and expectations of both the tenant and landlord. There are many different types of leases. The type and terms of a lease are decided by the landlord and agreed upon by the renting tenant.