In the Gauliga Bayern, one of sixteen top flight divisions formed in the re-organization of German football under the Third Reich in 1933, Jahn lasted for only two seasons before being relegated in 1935.

The club spent most of the period between the end of World War II and the formation of the Bundesliga in 1963 as a "yo-yo team" oscillating between the Oberliga Süd and the second division.

In 2000 the football team left to become an independent club and were joined by players from SG Post/Süd Regensburg in 2002.

[11][12] After being relegated to the fourth division, the Oberliga Bayern in 2005–06, Jahn achieved first place in the following season and were promoted back to the Regionalliga Süd.

Due to a reorganisation of the leagues, Jahn had to finish in tenth place or higher in order to stay in the third division, which is now the new 3.

Liga close to the relegation zone but then improved and came third in 2011–12, qualifying to play against the Karlsruher SC in the promotion round to the 2.

They drew 1–1 at Regensburg and 2–2 at Karlsruhe, which meant Jahn returned to second level after eight years thanks to the away goal rule.

[14] His successor, Oscar Corrochano, was sacked within months due to poor results, and subsequent coaches failed to prevent relegation in 2013.

[27][28][29] A strong DFB-Pokal run in 2020–21, reaching their first ever quarter-finals in the tournament,[30] highlighted their resilience, but performance declined in later seasons.

[37] The team dedicated their promotion to their late teammate, Agyemang Diawusie, who had tragically passed away earlier in the season.

[39] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

SSV Jahn Regensburg II (or SSV Jahn Regensburg Amateure) made a single season appearance in the southern division of the Amateurliga Bayern in 1962–63, the last year of the league being divided into two regional divisions.

At the end of the 2011–12 season, the club qualified directly for the newly expanded Bayernliga after finishing third in the Landesliga.