A snowflake is a component of snow, an aggregate of ice crystals that forms while falling in and below a cloud. They are relatively very small (like an ant) but there is also a record: the biggest snowflake measured fifteen inches wide and eight inches thick, in 1887, in Montana, United States. Other meanings of "snowflake" include:

• Snowflake (plant), a flowering plant in the genus Leucojum of the Liliaceae family
• Snowflake, Arizona, a town in the United States
• Snowflake, an albino gorilla who lived at the Parc Zoològic de Barcelona in Spain
• Koch snowflake, a geometric fractal
• Snowflake schema, a type of star schema in data management
• A booking class on flights run by Scandinavian Airlines System
• A charge in heraldry

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