List of storms named Guillermo explained

The name Guillermo has been used for eight tropical cyclones in the Eastern Pacific Ocean.

• Hurricane Guillermo (1979)
• Tropical Storm Guillermo (1985)
• Hurricane Guillermo (1991)
• Hurricane Guillermo (1997)
• Tropical Storm Guillermo (2003)
• Hurricane Guillermo (2009)
• Hurricane Guillermo (2015)
• Tropical Storm Guillermo (2021)