Undercover Boss is a British reality television series.

Each episode depicts a person who has a high management position at a major business, deciding to become undercover as an entry-level employee to discover the faults in the company.

The first series, consisting of two episodes was aired in 2009 followed by a second series consisting of six episodes one year later. This original series sparked the Undercover Boss franchise.

Localised versions of the show format are currently being produced in the United States, Australia, Germany and Canada and soon to be in Denmark, Spain, Turkey, Sweden, Norway, Belgium, Netherlands and Israel.