The Gym Group is a chain of 24/7 no contract fitness clubs in the United Kingdom.

The company is headquartered Addiscombe Road in Croydon, London, England.

The company was founded by a squash player, John Treharne, in Hounslow in West London in 2007.

[3] Phoenix Equity Partners and Bridges Ventures invested in the company in its early years.

[6] The Gym Group and PureGym explored a merger in 2014, but this was later abandoned.