# Otto Hartmann

> German navy officer and WWII submarine commander (1917-1943)

**Wikidata**: [Q96440263](https://www.wikidata.org/wiki/Q96440263)  
**Source**: https://4ort.xyz/entity/otto-hartmann-q96440263


## References

1. Die deutschen U-Boot-Kommandanten (1 ed.)
2. [Source](http://www.ubootarchiv.de/ubootwiki/index.php/Otto_Hartmann)