2005 Pacific Typhoon Season

The 2005 Pacific typhoon season had no official bounds; it ran year-round in 2005, but most tropical cyclones tend to form in the northwestern Pacific Ocean between May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean. This season was less active than the 2005 Atlantic hurricane season, the only other time this happened was in 2010.

The scope of this article is limited to the Pacific Ocean, north of the equator and west of the international date line. Storms that form east of the date line and north of the equator are called hurricanes; see 2005 Pacific hurricane season. Tropical storms that form in the West Pacific basin are assigned a name by the Japan Meteorological Agency. Tropical depressions in this basin have the "W" suffix added to their number. Tropical depressions that enter or form in the Philippine area of responsibility are assigned a name by the Philippine Atmospheric, Geophysical and Astronomical Services Administration or PAGASA. This can often result in the same storm having two names.

This season, the circular list of 140 names, in use since January 1, 2000, was recycled following the formation of Typhoons Saola; the final name on the list, and Damrey; the first name on the list.