may refer to one of the following.
- Spanner, a synonym of wrench
- The SpannerTM by AbbeyMoor Medical, Inc. FDA approved prostatic stent for treatment of urethral blockages.
- Spanner, a type of screw drive head
- Spanner (journal), a British journal on non-market socialism.
- Spanner (Garmin program) A free software program for Windows 2000 and XP
- Spanner graph
- Operation Spanner, by police in Manchester in the United Kingdom in 1987 to investigate a suspected sadistic torture
- Rudolf Spanner, a German doctor designed a process to produce soap from human fat in 1943-44.
- Spanner, a slang English synonym of idiot