| Litigants: | Cassirer v. Thyssen-Bornemisza Collection Foundation |
| Decidedate: | April 21 |
| Decideyear: | 2022 |
| Usvol: | 596 |
| Uspage: | ___ |
| Docket: | 20-1566 |
| Holding: | In a suit raising non-federal claims against a foreign state or instrumentality under the Foreign Sovereign Immunities Act, a court should determine the substantive law by using the same choice-of-law rule applicable in a similar suit against a private party. |
| Majority: | Kagan |
| Joinmajority: | unanimous |
| Lawsapplied: | Foreign Sovereign Immunities Act |
Cassirer v. Thyssen-Bornemisza Collection Foundation, 596 U.S. ___ (2022), was a United States Supreme Court case in which the Court held that, in a suit raising non-federal claims against a foreign state or instrumentality under the Foreign Sovereign Immunities Act, a court should determine the substantive law by using the same choice-of-law rule applicable in a similar suit against a private party.[1] [2]