U.S. Presidents and Vice Presidents

In Ireland and Scotland, Mac and Mc mean "son of"; here, Mac is a generic fella, or a short form cooler than either Matt or Max. Mac can be a nickname of any longer Mac or Mc starting name such as McCoy or Macalister. If you want to make it feel more complete, you can always spell it Mack.

Britney Spears' little sister Jamie Lynn was one of the first to put this nickname on the birth certificate. Cute for a child, but we recommend giving her the option of the full name for later use.

Since we wrote a book called Beyond Jennifer & Jason, Madison & Montana, encouraging parents to move beyond overused names, it's no secret what we think of this trendy surname name, inspired by a mermaid named Madison in the 1980s movie Splash.

Mads is a perennial favorite in Germany, the Nordic countries, and the Netherlands, where it is usually to be found in the Top 50. Just remember the D is not pronounced. Famous bearers include Danish actor Mads Mikkelsen, the villain of the Bond film "Casino Royale".

Soft and mellifluous nature-surname name, situated miles away from the dated Marshall.

Marshall is an occupational surname, not having to do with anything military or martial, but stemming from the Norman French for someone caring for horses. It's been used as a first name since the nineteenth century and has been on the Social Security list since it started to publish its data in 1880.

Martin is one of those names like Arthur and Vincent and George that is in the process of throwing off its balding middle-aged image to start sounding possible again, used in full without the dated Marty nickname.

Tennis-related name popular throughout Europe that's never caught fire here.

Marty is one of those Old Man nicknames that's just starting to sound cute again.

Presidential name that makes a fresh substitute for MacKenzie or McKenna. Possible spelling variations include MacKinley, MacKinlee, Makinleigh ad almost infinitum. McKinley is one of the Scottish names for girls that can work equally well for boys.

Michael was the Number 1 American boys' name for almost half a century. While Michael has moved out of the Top 10 baby boy names, it's still widely used.

This most proper form of the name shot up the charts in the nineties, only to sink just as precipitously, supplanted by upstarts Makayla and McKayla ad infinitum.

Unlike Jake or Sam, few parents put Mike on the birth certificate.

Hey, Mikey! Old school short form with a certain vintage charm, but it's one nickname you don't want to stick past, say, fifth grade.

If you're looking for a presidential first name, keep looking.

Combining the mild and the innocent, this sweet and feminine name is worthy of a comeback, in the mode of Madeline and Cecilia. Its original, also attractive form is Melisende, which came from Germany to France and was borne by a daughter of Charlemagne.

Milly and her more popular sister Millie are adorable Old Lady nickname-names springing back to life. Nearly 100 baby girls were named Milly, just Milly, last year, and Millie is in the US Top 500. Milly is the Molly of the new generation.

Sweet, nicknamey name belonging to the tragic heroines of both La Bohème and Rent. Mimi might feel too slight for many parents to use on the birth certificate, but as a short form, it's one of the cutest of the cute baby names.

Monroe is a presidential name which, thanks to the immortal beauty of Marilyn Monroe, is catching on fast for baby girls. Mariah Carey and Nick Cannon chose it for their twin daughter, honoring Marilyn Monroe. Their use of Monroe as a girls’ name did much to revive this Old Man name, a la Sydney, as a newly fashionable choice for girls.