Marlowe is very much in the air, with its lovely -o ending and the modern twist it offers on the likes of Margaret, Margot, Martha, and Marlene. But is it Marlowe, Marlow, or Marlo? Well, for a girl in the US at least, it's probably Marlowe, with this spelling the only one to appear in the Top 1000.

While Marlowe (and Marlow and Marlo) are surname names that are not intrinsically or traditionally gendered and so in theory work equally well for boys and girls. About 10 percent of the babies named Marlowe are boys, while Marlow is 25 percent male and Marlo is about 50-50.

Marlow is a suave, unusual surname-name that was chosen by Celine designer Phoebe Philo for her older son. This is a name with many spellings and many difference in gender identity. Marlowe is decidedly female, with only 10 percent of the babies named Marlowe male, while Marlow is 25 percent male, and Marlo is evenly divided.

This old English surname is gaining popularity, especially for girls. Though the Marlowe spelling is both the most popular and most feminine form of the name, second-place Marlow is 75 percent female. Marlo is 50-50.