Irina Voronina (born December 19, 1977 in Dzerzhinsk, Russia) is a Russian model. She was chosen as Playboy's Playmate of the Month in January, 2001 and has appeared in numerous Playboy videos. She has also modelled for Playboy rival, Perfect 10.

She appeared in the 2005 Playmates at Play at the Playboy Mansion swimsuit calendar as calendar girl of May. The calendar was the inaugural Playmates at Play calendar and it was shot on the grounds of Playboy Mansion in 2004. It was Playboy's first attempt at creating a non-nude swimsuit calendar featuring Playmates similar in style with those from Sports Illustrated Swimsuit Issue.

The painted naked cyclists of the Summer Solstice Parade in an unofficial reference to an artistic, non-political, clothing-optional bike ride ensemble celebrating the spirit of the Summer Solstice, and whom by tradition, usher in the beginning of the free-spirited Summer Solstice Parade & Pageant, which is an event produced by the Fremont Arts Council in the Fremont district of Seattle. Commonly referred to as the naked cyclists, it is not known if this group has an official name. The group was originally started by streakers who crashed the parade and has transformed itself into the heavily-adorned ensemble known today when key participants decided to emphasize bodypainting. The group is now the largest and fastest growing ensemble associated with the parade.

Sorry for the bad quality, it is difficult to find high quality pictures of Laetita Casta nude ;(