Two Letter Boy Names
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Two letter boy names are a short (ahem) elite list. The top 2 letter names for boys, the only 2 letter male names that stand alone in the Top 1000, are Bo and By.
Two letter names may be nickname names or in a few cases names in their own right. Familiar 2 letter nickname names include Ed, Al, and Cy. Two letter boy names we like include Ax, Oz, and Po.
If you're looking for 2 letter names for your baby boy, here is our complete list, ordered by popularity on Nameberry.
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- Bo
Origin:
Norse nicknameMeaning:
"to live"Description:
A popular name in Denmark, in this country Bo has some cowboy swagger and a lot of substance in its minimal two letters. In Mandarin Chinese, Bo means "wave".
- Ra
Origin:
EgyptianMeaning:
"sun"Description:
The name of the sun god of Egyptian mythology could only be used in combination with a longer name.
- Cy
Origin:
Diminutive of Cyrus, PersianMeaning:
"sun"Description:
This evocative short name is suddenly chic — it was recently chosen by Jennifer Lawrence for her baby boy. JLaw's son's name honors Cy Twombly, the influential mid-century American artist. Born Edwin Parker Twombly Jr., both Cy Twombly and his father shared a nickname after baseball player Cy Young (himself born Denton True Young).
- Oz
Origin:
Hebrew, English, IrishMeaning:
"strength, powerful, courageous; god's warrior; deer friend"Description:
While some may think of ruby slippers and a yellow brick road, Oz is a legitimate Hebrew name denoting power. An element in a number of names including Ozni, Oziel, and Ozias, it may also be used as a stand-alone choice which may appeal to those who enjoy the likes of Ty, Ed, Bo, and Cy.
- Aj
Origin:
Initial nameDescription:
Made up of the letters A and J, this initial name is often used as a nickname, however, a growing number of parents are choosing to put AJ on the birth certificate. It was one of the fastest rising boy names in England and Wales in 2023 and has appeared in the Top 1000 there a number of times since 2013.
- Pi
Description:
Most familiar as the name of the titular character in The Life of Pi, in which it was short for Piscine Molitor Patel.
- Ty
Origin:
Diminutive of various Ty-beginning namesDescription:
As Tyler has begun to recede, a number of parents, including the Wayne Gretzkys, have cut straight to the livelier short form.
- Jd
Origin:
Modern, initials J + DDescription:
A two-initial nickname occasionally used on birth certificates.
- Mo
Origin:
English diminutive of Maurice and MorrisMeaning:
"dark-skinned"Description:
An exceedingly friendly every-guy nickname that could rise alongside the likes of Ike, Sid, and Ned.
- Rj
Origin:
Modern, initials R + JDescription:
A two-initial nickname occasionally used on birth certificates.
- Sj
Origin:
Modern, initials S + JDescription:
A two-initial nickname occasionally used on birth certificates.
- Po
Origin:
Italian river nameDescription:
A river (in Italy), a writer (Bronson), a Teletubby: the Bo of the new millennium.
- Io
Origin:
JapaneseMeaning:
"rely on + emperor, rely on + hero"Description:
Io is most familiar to English speakers as a female name from Greek mythology, but in Japan it's used for both sexes.
- Sy
Description:
Sy is a short masculine name that can serve as a nickname for longer names like Simon, Seymour, or Sylvester, but also stands independently. It has multiple origins, including Hebrew, where it derives from 'Simon' meaning 'listener,' and Chinese, where the character '思' (Sī) means 'to think' or 'to reflect.' Simple and concise, Sy carries a friendly, approachable quality while maintaining a touch of uniqueness. In American culture, it gained some recognition through notable bearers like comedian Sy Feldman and cartoonist Sy Barry. While never among the most popular names, Sy maintains a steady presence particularly among Jewish communities and has seen occasional use throughout the 20th and 21st centuries.
- Yu
Origin:
ChineseMeaning:
"shining brightly"Description:
Yu the Great founded China's first dynasty, but in this country "Hey, you!" would make this name utterly confusing, in an Abbott and Costello way.
- Cj
Description:
CJ is a modern abbreviated name typically formed from the initials of first and middle names beginning with C and J, such as Christopher James, Charles John, or Cara Jane. This concise name gained popularity in the late 20th century alongside the trend toward shorter, more casual names and initials as standalone identities. CJ projects a friendly, approachable quality while maintaining a certain coolness and versatility. Its gender-neutral nature, though slightly more common for males, adds to its contemporary appeal. The name has been featured in popular culture through characters in television and film, helping to establish it as more than just a nickname but a legitimate given name in its own right.
- Ab
Description:
Ab is a short masculine name with multiple cultural origins. In Hebrew, it derives from 'אָב' (av) meaning 'father,' reflecting paternal significance in ancient societies. It appears in the Bible as a component of compound names and as the name of the fifth month in the Jewish calendar. In Arabic contexts, Ab can be a variant of Abd, meaning 'servant of.' The name also exists as a diminutive form of Albert or Abraham in some Western traditions. While historically present across several cultures, Ab remains quite rare as a standalone given name in modern usage, offering a distinctively brief, masculine sound with deep historical roots.
- Ox
Origin:
EnglishMeaning:
"working cattle"Description:
Animal names are booming, but this is one that's never been used — although Boaz, which means "ox" in Hebrew, is starting to see more use. With its connotations of strength, teamwork and perseverance, and cool X sound, well, why not? It would work especially well for a child born in the Chinese Year of the Ox (February 2021-January 2022). If you need a longer version an obvious option is Oxford, but there's also Oxley, Oxton, or a slightly different sound like Oakley or Oswald.
- Jt
Origin:
Modern, initials J + TDescription:
A two-initial nickname occasionally used on birth certificates.
- Jj
Description:
JJ is a masculine name that functions primarily as a diminutive or nickname, typically derived from first names beginning with the letter J, such as James John, Joseph, Jason, or Jonathan. Often, it represents the initials of a first and middle name combination (e.g., John Jacob). The simplicity of JJ makes it practical and memorable, with a friendly, approachable quality. While some people use JJ only informally, others adopt it as their legal name. Its popularity increased in the late 20th century alongside the trend toward casual, abbreviated names. JJ has gained additional recognition through notable sports figures and entertainers who use this moniker. The name's brevity gives it a modern, unpretentious feel that works well in contemporary naming trends.