Shave ice or Hawaiian shave ice is an ice-based dessert made by shaving a block of ice. While the product can resemble a snow cone, snow cones are made with crushed, rather than shaved, ice. Even though it is made with shaved ice, it is called "shave ice", not "shaved ice" by Hawaiians. On the Big Island of Hawaii, it is also referred to as 'ice shave', though both terms (ice shave and shave ice) are used by locals.

Shaving produces a very fine ice that appears snow-like. This extremely fine texture causes syrups added to it to be absorbed by the ice rather than simply surrounding. A properly made shave ice product rarely requires a straw, since the flavors are in the ice and not at the bottom of the cup.