Nicknames have been a part of human culture for centuries, and they have served many purposes. They can be endearing, funny, or even intimidating. For those looking for a nickname that starts with the letter "J," we have compiled a list of over 200 options for both men and women. From classic names like Jack and James to more unique options like Jedi and Jaguar, there's something for everyone on this list. Whether you're looking for a playful moniker for your best friend or a cool nickname for yourself, this list has you covered. So, without further ado, let's dive into the world of J-nicknames and find the perfect one for you!