About Jax
Jax is a modern English short form of Jackson, pronounced JAKS. Its three letters compress a surname-derived name into one syllable, with an x that represents the final k and s sounds. Characters in Mortal Kombat and Sons of Anarchy helped make the form familiar well beyond its use on birth certificates.
Jackson, Jack, and John
Jackson began as an English surname meaning “son of Jack.” Jack developed from medieval familiar forms of John, so Jax belongs to a much larger name family than its short spelling might suggest.
John ultimately comes from a Hebrew name meaning “God is gracious.” The route to Jax passes through Jack and Jackson; Jax itself is a shortening, rather than an ancient Hebrew form.
Jaxon and Jaxson are longer spellings in the Jackson group, while Jaxx doubles the final letter of the short form. Jack remains a closely related one-syllable name, but its ending is different: Jax adds an audible s after the k.
Jax Briggs in Mortal Kombat
Major Jackson “Jax” Briggs appeared in Mortal Kombat II, released in arcades in 1993. The character is a member of a United States special-forces unit, with a story connected to fellow fighter Sonya Blade.
His full name makes the shortening especially clear: Jax comes from Jackson within the fictional character’s identity. The fighting-game series brought the name into a setting very different from the English surnames behind it.
The character’s later appearances helped keep Jax familiar across successive generations of players. Its compact spelling suits a game roster, where a brief name becomes closely associated with a recognizable fighter.
Jax Teller in television
Charlie Hunnam played Jackson “Jax” Teller in Sons of Anarchy, the television drama that ran from 2008 to 2014. Jax is a central member of the motorcycle club around which the series is built.
The story follows his conflicting loyalties to family, the club, and the legacy of his father. As with Jax Briggs, the character’s longer name is Jackson, providing another direct example of the nickname’s formation.
The two fictional bearers belong to separate stories and media. Together they gave Jax a particularly visible popular-culture presence during the period when its American birth-name use was growing.
Pronunciation and sound
Jax has a single syllable, rhyming with “Max.” The x represents two consonant sounds, ks, rather than the z sound heard at the beginning of some words.
Jackson adds a light second syllable, while Jack stops at the k. Jax’s distinct sound is therefore in its ending, even though all three forms share their opening and a historical connection.
The name is used independently as well as as a nickname. Its brief spelling preserves a recognizable connection to the longer forms without needing their full two-syllable rhythm.
American popularity
There were 73 boys named Jax in the United States in 2000 and 882 in 2010. Its largest annual count came in 2015, with 1,865 boys.
Its best rank was number 208 in 2014. In 2025, 961 boys received the name, placing it at number 342. That pattern shows substantial growth followed by a retreat from its mid-2010s peak.
Sources & methodologyReferences, data & attribution
Meaning, history, and cultural connections draw on the references below. Existing Wiktionary material is attributed under CC BY-SA 4.0 where applicable. American popularity figures use the local Social Security Administration exact-spelling series; counts below five for a name, sex, and year are omitted.
- Wiktionary: Jax (English)
- Social Security Administration: national name data
- Wikidata: Jax Jones
- Mortal Kombat II manual
- Mortal Kombat Online: MKII
- FX: Jax Teller
- FX: Sons of Anarchy cast
Wiktionary material is available under CC BY-SA 4.0.
How popular is Jax?
In 2025, Jax ranked #342 among boys in the United States, with 961 recorded uses. The U.S. birth records first list this spelling for boys in 1995; its largest annual count was 1,865 in 2015. Rankings count each spelling separately. They describe national use, so local familiarity can differ. The popularity chart shows whether the name has remained common, returned after a quieter period, or risen recently.