Livens may refer to:
- George Henry Livens (1886–1950), British mathematician
- William Howard Livens (1889-1964), British soldier and inventor of chemical and flame weaponry
- Livens Projector, a mortar-like weapon used for gas warfare in World War I
- Livens Large Gallery Flame Projector, a flamethrower used in World War I
- Jānis Līvens (1884-?), Latvian cyclist who competed in the 1912 Summer Olympics
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