| Litigants: | Granite Rock Co. v. International Brotherhood of Teamsters |
| Decidedate: | June 24 |
| Decideyear: | 2010 |
| Usvol: | 561 |
| Uspage: | 287 |
| Holding: | Courts, not arbitrators, determine whether and when arbitration contracts are formed when the decision affects whether parties intended to submit an issue to arbitration. |
| Majority: | Thomas |
| Joinmajority: | unanimous |
Granite Rock Co. v. International Brotherhood of Teamsters, 561 U.S. 287 (2010), was a United States Supreme Court case in which the Court held that courts, not arbitrators, determine whether and when arbitration contracts are formed when the decision affects whether parties intended to submit an issue to arbitration.[1]