Michelle Piper goes by Meesh.
Alexis Piper goes by Piper.
Kati Piper goes by Pipes.
Piper Laurie goes by Rosie.
Piper Hinson goes by Pippi.
There is no public information available about Michelle Nieken's nicknames.
Michelle Osorio goes by Michelle Kenobi.
Bill Millin went by Piper Bill, and The Mad Piper.
Michelle Sasser went by Mickie.
Michelle Bernstein goes by Michy.
Michelle Raboteau goes by Mish.
Michelle Perks goes by Misha.
Michelle Obama goes by Mooch.