Initials used as a name
Jj is a modern phonetic coinage or a double-initial nickname used as a formal given name. It typically represents the repetition of the letter J, often standing for a combination of two names starting with J, such as James Junior. While rare as a legal first name, it is a common informal moniker in American culture.
Less common today
Jj isn't in the latest US Top 1000. It last peaked at #3,098 in 2025.
US births per 5-year period, 1990–present (SSA data).
Former NFL defensive end
Film director and producer
Former NBA player and coach
Character known for the catchphrase 'Dy-no-mite!' · Good Times
Main character and Pogue · Outer Banks
Special Agent Jennifer Jareau · Criminal Minds
