Maxi \max-xi\ as a girl's name is a variant of Maxine (Latin), and the meaning of Maxi is "greatest".

The baby name Maxi sounds like Maxy, Maxie and Max. Other similar baby names are Maci, Kasi, Lexi, Kaci, Casi, Caci, Maris, Mavis, Macy, Macie, Magli, Maggi, Mazie, Mansi, Marci, Mag, Maxima, Maxina, Maxime, Miki and Roxi.