The Social Security Administration released their annual list of the most-popular baby names, and for the first time since 1948, Michael is NOT in the top five.  It finished number six and was bumped out by . . . Mason.

The popularity of Mason is probably thanks to Kourtney Kardashian, since that's what she named her baby boy.

Here are the ten most popular names for BOYS.

#1.)   Jacob.  (--This is the 13th straight year Jacob has been #1.)

#2.)  Mason.

#3.)  William.

#4.)  Jayden.

#5.)  Noah.

#6.)  Michael.

#7.)  Ethan.

#8.)  Alexander.

#9.)  Aiden.

#10.)  Daniel.

The boys' names that saw the biggest jump in popularity were Brantley . . . which moved up 416 spots in the rankings . . . and Iker, Maximiliano, and Zaiden.

The biggest DROP in popularity among boys' names was for Brett, which fell 119 spots.  Jamarion, Shaun, and Jaydon also plunged more than 100 spots.

Here are the ten most popular names for GIRLS . . .

#1.)  Sophia.  (--Up from #2 last year.)

#2.)  Isabella.

#3.)  Emma.

#4.)  Olivia.

#5.)  Ava.  (--Which means the top five names for girls all end in 'a'.)

#6.)  Emily.

#7.)  Abigail.

#8.)  Madison.

#9.)  Mia.

#10.)  Chloe.

The girls' names outside the top 10 that had the biggest increase in popularity were Briella, Angelique, Aria, and Mila.

Brisa fell the most in the girls' rankings, followed by Dana, Desiree, and Denise.