This is a list of people noted for their contribution to gardening, either by working as gardeners or garden designers by occupation, or by commissioning famous gardens.
It does not include the innumerable people who count gardening among their hobbies.
The following are or were gardeners or garden designers by occupation. The list includes garden designers and landscape gardeners, who are involved chiefly in the design of gardens rather than the practical aspects of horticulture. It also includes experts noted for their writing or broadcasting on the subject.
Other people whose primary profession was not gardening have made notable contributions to horticulture by planning or commissioning significant gardens.