TSV may refer to:
- Tab-separated values, an example of delimiter-separated values
- Through-silicon via, a vertical electrical connection passing completely through the silicon substrate of a wafer or die
- Time Space Visualiser, a Doctor Who fanzine
- Temperature safety valve
- Townsville Airport (IATA code)
- In German, TSV means Turn- und Sportverein (i.e. Club for Gymnastics and Sports)
- in Latvia, TSV is the name of a group, led my sociopathic people, who gained fame in 2008.