The USS Pioneer (NCC-73409) was a starship in service to Starfleet during the 24th century. It was commissioned and launched in 2367 under the command of Captain Tobias Quinton, former CO of the USS Bernal and a 28-year veteran of Starfleet. Upon his promotion in 2376, command was transferred to the newly promoted Captain Scott O'Reilly, former first officer of the USS Knossos and the son of Vice Admiral Hanne Lindholm.