Upper Clyde Shipbuilders
| Company type | Private | 
|---|---|
| Industry | Shipbuilding | 
| Founded | 1968 | 
| Defunct | 1972 | 
| Fate | Liquidated | 
| Successor | Govan Shipbuilders Scotstoun Marine Ltd Yarrow Shipbuilders Marathon (Clydebank) | 
| Headquarters | Fitzpatrick House, Cadogan Street, Glasgow, Scotland Alexander Stephen House, Linthouse, Glasgow (from 1969) | 
| Key people | 
 | 
| Number of employees | 13,000 | 
| Subsidiaries | Clydebank Division Govan Division Linthouse Division Scotstoun Division Simons and Lobnitz Yarrow Shipbuilders (Until April 1970) | 
Upper Clyde Shipbuilders (UCS) was a Scottish shipbuilding consortium, created in 1968 as a result of the amalgamation of five major shipbuilders of the River Clyde. It entered liquidation, with much controversy, in 1971. That led to a "work-in" campaign at the company's shipyards, involving shop stewards Jimmy Airlie and Jimmy Reid, among others.