USS Porpoise (1820)
|Builder:||Portsmouth Navy Yard|
|Displacement:||177 long tons (180 t)|
|Length:||86 ft (26 m)|
|Beam:||24 ft 7 in (7.49 m)|
|Depth:||10 ft 4 in (3.15 m)|
|Armament:||12 × 6-pounder guns|
Cruising the West African coast in 1824–25, the schooner engaged in the suppression of the slave trade. Late in 1825 she returned to the United States and, under Commander Foxhall A. Parker, Sr., cruised off the northeast coast of the United States.
Porpoise cruised the Mediterranean from 1826 until 1830 under the command of Lts. Benjamin Cooper, John H. Bell, and Thomas M. Newell successively. Returning to the West Indies in 1830, she sailed under Lts. John Percival, James Armstrong, and James McIntosh.