Nine ships of the Royal Navy have borne the name HMS Pioneer:

• HMS Pioneer (1804) was a 14-gun brig listed 1804–1807.
• HMS Pioneer (1810) was a Pigmy–class schooner of the Royal Navy, launched in 1810 as a cutter. During her service with the Navy she captured one French privateer and assisted at the capture of another. In 1823–1824 she underwent fitting for the Coast Guard blockade. She then served with the Coast Guard to 1845. She was sold at Plymouth in 1849.
• HMS Pioneer (1850) was a wood screw discovery vessel launched in 1850. She was originally named Eider. She was abandoned in 1854 in the Arctic.
• HMS Pioneer (1856) was a wood screw gunvessel launched in 1856. She was broken up in 1865.
• HMS Pioneer (1864) was a wood paddle survey vessel built in 1860, transferred from the Colonial Office in 1864. She was sold in 1873.
• HMS Pioneer (1874) was a composite paddle vessel launched in 1874. She was broken up in 1888.
• HMS Pioneer (1892) was a river gunboat launched in 1892. In 1893 she was dismantled and then re-erected in Lake Nyasa. She was transferred to the British Central Africa government in 1894.
• HMS Pioneer was a Pelorus-class light cruiser launched in 1899. She was transferred to the Royal Australian Navy in 1912 where she became HMAS Pioneer.
• HMS Pioneer (R76) was a Colossus-class aircraft carrier launched in 1944. She was originally named Ethalion, then Mars. She was broken up in 1954.

• Pioneer (1862), a gunboat commissioned by New Zealand and manned by the Royal Navy

• Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8.
• McDougall, R J (1989) New Zealand Naval Vessels. Government Printing Office. ISBN 978-0-477-01399-4

This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.