HNLMS Guinea was an Buffel-class monitor built for the Royal Netherlands Navy in the early 1870s.

Her crew initially consisted of 117 officers and enlisted men, but later increased to 159 crewmen.

[1] The Buffel-class monitors had two 2-cylinder compound-expansion steam engines, each driving a single propeller shaft.

[1][2] The Buffel class was initially armed with two Armstrong 9-inch (229 mm) rifled muzzle-loading guns mounted in a single turret and four 30-pounder 4.7-inch (120 mm) smoothbore guns on the deck.

[1] Unlike her sister ship, Buffel, Guinea was built in the Netherlands.