The name Calvin has been used for eight tropical cyclones in the Eastern Pacific Ocean.
Hurricane Calvin was one of three Pacific hurricanes on record to make landfall along the Mexican coast during the month of July. The fourth tropical cyclone, third named storm, and second hurricane of the 1993 Pacific hurricane season, Calvin developed from an area of convection to the south of Mexico on July 4. The following day, the system intensified into a tropical storm, which was named Calvin. Continued strengthening ensued as Calvin curved from its initial westward track northward, and was upgraded to a hurricane on July 6. Calvin eventually turned northwest, and became a Category 2 hurricane on the Saffir–Simpson hurricane wind scale (SSHWS). By July 7, Hurricane Calvin made landfall near Manzanillo at peak strength. Calvin rapidly weakened after landfall, and was a tropical storm when it reemerged into the Pacific Ocean on early on July 8. Despite this, the hurricane did not reintensify, and continued to weaken as it headed rapidly northwestward. As Calvin made a second Mexican landfall near the southern tip of Baja California peninsula late on July 8, it weakened to a tropical depression. Early on July 9, the depression dissipated shortly after entering the Pacific Ocean for a third time.