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This page documents the tornadoes and tornado outbreaks of 2007, primarily (but not entirely) in the United States. Most tornadoes form in the U.S., although some events may take place internationally, particularly in parts of neighboring southern Canada during the summer season. Some tornadoes also take place in Europe, e. g. in the United Kingdom or in Germany.

As of October 18, there have been 1,172 reported tornadoes in the U.S. (of which at least 525 have been confirmed), with 81 confirmed fatalities. It is already the deadliest year for tornadoes in the U.S. since 1999, when 95 deaths were reported. In addition, three fatalities took place in Mexico, 14 in Chad, one in South Africa, three in Vietnam, one in the Philippines and 25 in China for a worldwide known total of 128.

Notably, the system for classifying tornado damage in the United States changed from the Fujita scale to the Enhanced Fujita Scale on February 1.