This is a list of cases reported in volume 137 of United States Reports, decided by the Supreme Court of the United States in 1890 and 1891.

The Supreme Court is established by Article III, Section 1 of the Constitution of the United States, which says: "The judicial Power of the United States, shall be vested in one supreme Court .

The size of the Court is not specified; the Constitution leaves it to Congress to set the number of justices.

The Judiciary Act of 1891 created the United States Courts of Appeals and reassigned the jurisdiction of most routine appeals from the district and circuit courts to these appellate courts.

The change resulted in an immediate reduction in the Supreme Court's workload (from 623 cases filed in 1890 to 379 in 1891 and 275 in 1892).