Michelle Obama goes by Mooch.
There is no public information available about Michelle Nieken's nicknames.
Michelle Osorio goes by Michelle Kenobi.
Yes there are just go to google images and type in Michelle Obama Pregnant
Michelle Sasser went by Mickie.
Michelle Bernstein goes by Michy.
Michelle Raboteau goes by Mish.
Michelle Perks goes by Misha.
Michelle Piper goes by Meesh.
Michelle Opitz goes by Mopitz.
Michelle McClatchy goes by Shelley.
Kathryn Michelle goes by Roo.
Michelle Millette goes by Mothra.