The name Guillermo has been used for eight tropical cyclones, all in the East Pacific Ocean:

• Hurricane Guillermo (1979)  –a Category 1 hurricane that did not affect land.
• Tropical Storm Guillermo (1985)  –did not affect land.
• Hurricane Guillermo (1991)  –a Category 1 hurricane that did not affect land.
• Hurricane Guillermo (1997)  –a Category 5 hurricane that became the second-strongest Pacific hurricane in terms of barometric pressure at the time.
• Tropical Storm Guillermo (2003)  –did not affect land.
• Hurricane Guillermo (2009)  –a Category 3 hurricane that affected Hawaii.
• Hurricane Guillermo (2015)  –a Category 2 hurricane that affected Hawaii and California.
• Tropical Storm Guillermo (2021)  –affected the Revillagigedo Islands.

See also

• Cyclone Guillaume (2002) –a similar name that was used in the South-West Indian Ocean.

List of storms with the same or similar names

This article includes a list of named storms that share the same name (or similar names).
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