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".

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).

The name of the sun god of Egyptian mythology could only be used in combination with a longer name.

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 has been making the occasional appearance in the England and Wales Top 1000 since 2013.

As Tyler has begun to recede, a number of parents, including the Wayne Gretzkys, have cut straight to the livelier short form.

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.

This short and sweet multicultural name has a lot of potential meanings packed into its two letters!

A two-initial nickname occasionally used on birth certificates.

Yu the Great founded China's first dynasty and the name went on to become one of the most popular boy names in its native country during the 2000s. In more recent years, it has been used as an element of other popular names, such as Haoyu, Yuxuan, Yuze, and Yutong.

Most familiar as the name of the titular character in The Life of Pi, in which it was short for Piscine Molitor Patel.

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.

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.

Ky is a modern minimalist masculine name with multiple possible origins. As a standalone name, it may be derived from the Irish 'Caodhain' (meaning 'little battle') or can function as a shortened form of names like Kyle, Kyler, or Kyson. In Vietnamese culture, Ky can mean 'rare' or 'precious.' The name has gained modest popularity in recent decades as parents increasingly favor short, punchy names with international appeal. Its simplicity makes it versatile across cultures while its distinctive sound helps it stand out. Ky embodies contemporary naming trends that prioritize brevity and uniqueness.

A river (in Italy), a writer (Bronson), a Teletubby: the Bo of the new millennium.

A two-initial nickname occasionally used on birth certificates.

Jo is usually the feminine form of the name, while Joe is the masculine spelling.

A two-initial nickname occasionally used on birth certificates.

Md is most commonly used as an abbreviation for 'Mohammed' (or Muhammad), one of the world's most popular masculine names honoring the Prophet of Islam. This abbreviated form is particularly common in Bangladesh, parts of India, and some other South Asian countries, often appearing on official documents and signatures. The full name Mohammed derives from Arabic and means 'praiseworthy' or 'praised one.' While technically an abbreviation, Md functions as a given name in its own right for many bearers. Its extreme brevity makes it distinctive, though it may cause confusion in international contexts where such abbreviations are less familiar. For many families, using Md represents a connection to Islamic tradition while offering a compact alternative to the full name, which has numerous spelling variations across different cultures.

An exceedingly friendly every-guy nickname that could rise alongside the likes of Ike, Sid, and Ned.