The B-World Cup in Nordic Combined 2004/05 was a series of competitions in Nordic Combined organized by the World Federation FIS . The substructure for the World Cup of Nordic Combined 2004/05 was held for the 15th time that season. The season was divided into three periods, which, in addition to the right to start, also had an impact on the overall ranking. According to Article 4.1 of the regulations, only one athlete who was not eligible to compete in the World Cup in the last period could become the overall winner. This regulation also applied to the determination of the Sprint Cup winner, with the exception of athletes who started at least two periods in the B World Cup. The overall B World Cup winner received the big trophy, the sprint winner the small trophy. The athletes in ranks 1 to 6 were also awarded FIS medals. The sum of the three competitors with the best points per competition from one and the same ski association was used together with the points from the team competitions for the national ranking.
The season included ten stations in Europe and North America . The season began on December 11, 2004 in Steamboat Springs and ended on March 13, 2005 in Vuokatti . There were ten sprints, two mass starts and seven Gundersen singles. In addition, two mass start team competitions were held. Overall and Sprint Cup winner was Stephan Münchmeyer , who won three competitions. Germany won the Nations Cup .