A wireless site survey, sometimes called an RF site survey or WLAN wireless survey, is the process of planning and designing a wireless network, to provide a wireless solution that will deliver the required wireless coverage, data rates, network capacity, roaming capability and Quality of Service (QoS). The survey usually involves a site visit to test for RF interference, and to identify optimum installation locations for access points. This requires analysis of building floor plans, inspection of the facility, and use of site survey tools.

As part of the wireless site survey, the effective range boundary is set, which defines the area over which signal levels are needed to support the intended application. This involves determining the minimum signal to noise ratio (SNR) needed to support performance requirements.

A WLAN wireless site survey can also mean the walk-testing, auditing, analysis or diagnosis of an existing wireless network, particularly one which is not providing the level of service required.