CGU plc was a large insurance group, created by the merger of Commercial Union and General Accident in 1998.

The company was listed on the London Stock Exchange.

[1] The company was created by the 1998 merger of Commercial Union and General Accident.

[2] It only existed for two years before it merged with Norwich Union in 2000 to form CGNU plc, later renamed Aviva plc.

[3] In the US, the CGU casualty and property businesses were purchased by White Mountains Insurance Group; the name of the company was later changed to OneBeacon Insurance Company.