What sign do you have if your name starts with J?

The zodiac sign associated with the letter "J" is typically Gemini (May 21 - June 20) or Jupiter, which rules Sagittarius (November 22 - December 21). However, names starting with "J" don't directly correlate to a specific zodiac sign, as Astrology is based on birth dates rather than initials. To determine your zodiac sign, you would need your birth date instead.