SV 1958 Alfeld/Leine is a German football club from the city of Alfeld, Lower Saxony.

In 1933, the Nazi regime broke up clubs with links to worker's groups as politically unpalatable and the membership of Fußballclub Union Alfeld also became part of Tuspo.

[1] Following the war SV spent the 1947–48 season in the Landesliga Niedersachsen/Hildesheim (III) finishing 9th before settling into lower-level competition until the late 1950s.

On 1 May 1958, the footballers left the club to establish the independent FC Alfeld which captured a Bezirksliga championship in 1976 and followed up with a cup win in 1977.

They eventually returned to rejoin their parent club in 1991 and are today one of over a dozen departments within the association.