Double check may refer to:
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/40px-Wiktionary-logo-en-v2.svg.png)
Look up double check in Wiktionary, the free dictionary.
- Double check, a chess term; check delivered by two pieces simultaneously
- Double Check, a sculpture by John Seward Johnson II
- Double Check (novel), a novel in the Traces series
- Double-checked locking, a software design pattern
- Double check valve, a backflow prevention design