The 2023 FIA WRC3 Championship was the tenth season of WRC3, a rallying championship organised and governed by the Fédération Internationale de l'Automobile as the third-highest tier of international rallying. It was open to privateers and teams using cars complying with Group Rally3 regulations.[1] The championship began in January 2023 with the Rallye Monte-Carlo and concluded in November 2023 with Rally Japan, and ran in support of the 2023 World Rally Championship.
Lauri Joona and Enni Mälkönen entered as the defending drivers' and co-drivers' champions.[2]
Roope Korhonen and Anssi Viinikka won the 2023 drivers and codrivers championships.[3]