Baby Names with Double Letters

There is something satisfying about a doubled letter — the soft ll at the heart of Ella, the crisp tt in Scarlett, the warm mm in Emma. This guide sorts names into 9 buckets by which letter is doubled and lists, for each one, the real names that charted in the latest US Social Security figures.

Pick a doubled letter to see every charting name that contains it, ranked by US popularity, with each name’s gender and a link to its full meaning, origin, and popularity history. Every list is read straight from the 2024 birth data — want another angle? Try names by length, by syllable count, or by ending.

Double L

83 names · The softest, most common double

Flowing favourites like Ella, Isabella, Ellie, and Willow — the gentle ll is the most common doubled letter in American names.

Double N

67 names · Smooth, hummed, and modern

Names such as Hannah, Gianna, Bennett, and Anna — the hummed nn turns up in palindromes and Italian favourites alike.

Double T

28 names · Crisp, preppy, and surnamey

Sharp picks like Scarlett, Wyatt, Everett, and Bennett — the snappy tt runs through a whole wave of surname names.

Double E

20 names · The bright, modern long-E

Sunny, rhyming names like Rylee, Kaylee, Reese, and Charlee — the bright ee defines a generation of -lee spellings.

Double S

17 names · Soft, hissing, and romantic

Names like Tessa, Vanessa, Melissa, and Jesse — the gentle ss hisses through a run of soft, romantic favourites.

Double M

15 names · Warm, humming, and friendly

Warm names such as Emma, Emmett, Gemma, and Summer — the cozy mm hums at the heart of the Emm- family.

Double R

10 names · Rugged and surname-strong

Sturdy names like Harrison, Barrett, Warren, and Sierra — the rolling rr gives surname names real grip.

Double D

8 names · Bouncy, with built-in nicknames

Lively names such as Addison, Maddox, Maddie, and Thaddeus — the bouncy dd comes with a ready-made -ie nickname.

Double O

7 names · Cool, coastal, and open

Easygoing names like Cooper, Brooks, Brooklyn, and Boone — the open oo has a cool, coastal ring.

How these lists are built

Rather than guess which names have a double letter, we read it from the data. For each bucket we pull every name that charted on the 2024 US Social Security list and contains that doubled letter, count each name once under the gender it is given to more often, and rank the results by national popularity. That keeps the lists honest and current: a name only appears here if real families used it that year, and the gender shown reflects how it is actually given. A name with two different doubles — the ll and ee of a name like Kaylee — will show up under each one.

Browse names another way: by length, by syllable count, by ending, by birthstone, or unisex & gender-neutral names.

Frequently asked questions

What counts as a double-letter name?

A double-letter name has the same letter written twice in a row inside its spelling — the ll in Ella, the tt in Scarlett, the mm in Emma. These pages group the real charting names by which letter is doubled, so you can browse all the double-L names, all the double-T names, and so on.

Where do these name lists come from?

Each page is built live from the 2024 US Social Security Administration birth data. We list the real names that charted that year and contain the chosen doubled letter, show each name’s national rank, and link to its full meaning and origin. Nothing is invented — a name only appears if real families used it.

Which doubled letter is most common in names?

The doubled l is by far the most common, running through favourites like Ella, Isabella, and William, followed by the doubled n in names such as Hannah and Gianna. Rarer doubles like bb, cc, and pp turn up in only a handful of charting names, so the pages here feature the doubled letters with enough names to browse.