What were the most popular first letters for baby names in 2017?
For girls, the most-used first letter was A, followed by M and E. The least-used first letter was U. Here’s the breakdown:

And here are the most-used girl names per letter for 2017:
- Ava
- Brooklyn
- Charlotte
- Delilah
- Emma
- Faith
- Grace
- Harper
- Isabella
- Julia
- Kennedy
- Layla (new; replaced Lily)
- Mia
- Nora (new; replaced Natalie)
- Olivia
- Penelope
- Quinn
- Riley
- Sophia
- Taylor
- Unique
- Victoria
- Willow
- Ximena
- Yaretzi
- Zoey
For boys, the most-used first letter was J, followed by A and C. The least-used first letter was U. Here’s the breakdown:

Here are the most-used boy names per letter for 2017:
- Alexander
- Benjamin
- Carter
- Daniel
- Elijah
- Finn
- Gabriel
- Henry
- Isaac
- James
- Kayden (new; replaced Kevin)
- Liam
- Mason
- Noah
- Oliver
- Parker
- Quinn
- Ryan
- Samuel
- Thomas
- Uriel
- Vincent
- William
- Xavier
- Yusuf
- Zachary
Finally, here are both genders side-by-side on the same chart:

Overall, the top first letter was A and the least popular letter was U. Not much has changed since 2016…
Would have picked Zoe as the top Z name forv girls, but very surprised that the Zoey spelling ranks higher.
@FE – Zoey surpassed Zoe in the rankings in 2011:
2012: 7466 girls named Zoey vs. 6455 girls named Zoe
2011: 6399 girls named Zoey vs. 6303 girls named Zoe
2010: 5207 girls named Zoey vs. 6266 girls named Zoe
The “Zoey” spelling was helped along by the Nickelodeon show Zoey 101, which aired from 2005 to 2008.
The names with the letter A and M are the most common.