Several spelling variations of this name feel stylish for either a boy or girl, including Marlo, Marlow, and Marlowe. This spelling in particular feels in line with trending Arlo.

Perky, pretty nickname name that seems to have been invented by or for Marlo Thomas, who was born Margaret. Hipster mommy blogger Dooce named her newborn daughter Marlo Iris and comedian Rob Corddry named his daughter Marlo Stevenson.