Barium may refer to one of the following:
Canon
- Barium, a fuel
- Barium reed, a plant known to Udi Dis
- Barium Fizz, a product known to Barva-Zul
Star Wars Legends
- The Barium Frizz, a beverage invented by Wuher
- Barium liquid, a consumable product served alongside roast Smapp at Dex's Diner
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