Iron and Steel Trades Confederation
| Merged into | Community | 
|---|---|
| Founded | 1 January 1917 | 
| Dissolved | 2004 | 
| Headquarters | Swinton House, Gray's Inn Road, London | 
| Location | |
| Members | 110,000 (1978) | 
| Publication | ISTC Banner | 
| Affiliations | TUC, CSEU, Labour, STUC | 
| Website | www | 
The Iron and Steel Trades Confederation (ISTC) was a British trade union for metal-workers and allied groups, being the largest union in these fields. It was formed on 1 January 1917 as a merger of existing steel-workers' unions and it is now part of Community.