Beaker may refer to:
- Beaker (drinkware), a beverage container
- Beaker (glassware), or "laboratory beaker", a glass object used for holding fluids and chemicals in a laboratory setting
- Beaker (archaeology), a prehistoric drinking vessel
- Beaker culture, the archaeological culture often called the Beaker people
- Beaker (musician), Contemporary Christian Music songwriter, musician, and Rich Mullins collaborator
- Beaker (Muppet), the hapless assistant of Dr. Bunsen Honeydew on The Muppet Show