A tumbler is a flat-bottomed beverage container usually made of plastic or glass.

They are called “tumbler” because such glasses originally had a pointed or convex base and could not be set down without spilling. This compelled the drinker to finish his measure.^{[citation needed]}

• Collins glass, for a tall mixed drink^[1]
• Dizzy Cocktail glass, a glass with a wide, shallow bowl, comparable to a normal Cocktail glass but without the stem
• Highball glass, for mixed drinks^[2]
• Iced tea glass
• Juice glass, for fruit juices and vegetable juices.
• Old Fashioned glass, traditionally, for a simple cocktail or liquor “on the rocks“. Contemporary American “rocks” glasses may be much larger, and used for a variety of beverages over ice
• Shot glass, a small glass for up to four ounces of liquor. The modern shot glass has a thicker base and sides than the older whiskey glass
• Table-glass or stakan granyonyi
• Water glass
• Whiskey tumbler, a small, thin-walled glass for a straight shot of liquor