The Challenge: Battle of the Seasons is the 23rd season of the MTV reality game show, The Challenge. Although sharing the same name as the show's 5th season, Battle of the Seasons, unlike other sequel seasons is not distinguished as part "II" as the Season has a completely different format. The season took place in Bodrum, Turkey and Swakopmund & Windhoek, Namibia.

Real World/Road Rules Challenge: Battle of the Seasons is the fifth season of the MTV reality game show, The Challenge. The season is directly subsequent to Extreme Challenge.