| Litigants: | Machinists v. Street |
| Arguedate: | April 21 |
| Argueyear: | 1960 |
| Rearguedatea: | January 17 |
| Rearguedateb: | 18 |
| Reargueyear: | 1961 |
| Decidedate: | June 19 |
| Decideyear: | 1961 |
| Fullname: | International Association of Machinists, et al. v. Street, et al. |
| Usvol: | 367 |
| Uspage: | 740 |
| Parallelcitations: | 81 S. Ct. 1784; 6 L. Ed. 2d 1141; 1961 U.S. LEXIS 1997 |
| Prior: | Appeal from the Supreme Court of Georgia |
| Holding: | A union may constitutionally compel contributions from dissenting nonmembers in an agency shop only for the costs of performing the union's statutory duties as exclusive bargaining agent. |
| Plurality: | Brennan |
| Joinplurality: | Warren, Clark, Stewart |
| Concurrence: | Douglas |
| Concurrence/Dissent: | Whittaker |
| Dissent: | Black |
| Dissent2: | Frankfurter |
| Joindissent2: | Harlan |
International Association of Machinists v. Street, 367 U.S. 740 (1961), was a United States labor law decision by the United States Supreme Court on labor union freedom to make collective agreements with employers to enroll workers in union membership, or collect fees for the service of collective bargaining.
The Supreme Court held that "a union may constitutionally compel contributions from dissenting nonmembers in an agency shop only for the costs of performing the union's statutory duties as exclusive bargaining agent."