- 18 U.S. 1 (1820) Houston v. Moore (18 U.S. 1)
- 18 U.S. 76 (1820) United States v. Wiltberger
- 18 U.S. 116 (1820) McClung v. Ross
- 18 U.S. 127 (1820) The Venus Jademerowsky
- 18 U.S. 132 (1820) The London Packet
- 18 U.S. 144 (1820) United States v. Klintock
- 18 U.S. 153 (1820) United States v. Smith
- 18 U.S. 184 (1820) United States v. Furlong Hobson
- 18 U.S. 207 (1820) Stevenson's v. Sullivant
- 18 U.S. 269 (1820) Perkins v. Ramsey
- 18 U.S. 277 (1820) Mandeville v. Welch
- 18 U.S. 291 (1820) Wallace v. Anderson
- 18 U.S. 293 (1820) Polk's Lessee v. Wendell
- 18 U.S. 313 (1820) Marshall v. Beverley
- 18 U.S. 317 (1820) Loughborough v. Blake
- 18 U.S. 326 (1820) Mechanics' Bank of Alexandria v. The Bank of Columbia
- 18 U.S. 338 (1820) The Josefa Segunda
- 18 U.S. 359 (1820) Blake v. Doherty
- 18 U.S. 374 (1820) Handly's v. Anthony
- 18 U.S. 385 (1820) La Amistad De Rues
- 18 U.S. 394 (1820) Lyle v. Rodgers
- 18 U.S. 412 (1820) The United States v. Holmes
- 18 U.S. 420 (1820) Owings v. Speed
- 18 U.S. 424 (1820) Conn v. Penn
- 18 U.S. 429 (1820) Campbell v. Pratt
- 18 U.S. 433 The Atalanta
- 18 U.S. 434 (1820) United States v. Lancaster
