Snowzilla may refer to:
- Snowmageddon, Snowpocalypse, and Snowzilla, common nicknames for various winter storms in North America and the United Kingdom, including:
- Snowzilla (snowman), a giant snowman built annually in Anchorage, Alaska
- Snowzilla, a jet-powered snow blower used on the Massachusetts Bay Transportation Authority's Ashmont–Mattapan High Speed Line