Neckarsulmer SU
| Full name | Neckarsulmer Sport-Union e.V. | 
|---|---|
| Founded | 2009 | 
| Ground | Pichterichstadion | 
| Chairman | Rolf Härdtner | 
| Head Coach | Marcel Busch (football) | 
| League | Verbandsliga Württemberg (VI) | 
| 2022–23 | 17th (relegated) | 
Neckarsulmer SU is a German sports club from the town of Neckarsulm, Baden-Württemberg. The football club's greatest success has been promotion to the tier five Oberliga Baden-Württemberg in 2016 and participation in the first round of the 2013–14 DFB-Pokal.
The club also has, among many others, a rugby union department, with the team playing in the 2. Rugby-Bundesliga since 2012.
The women's handball team played in the Bundesliga.