"Late Late" Tattoo
The story behind this tattoo is a great one: One Direction played a game of Tattoo Roulette on "The Late Late Show With James Corden" in 2015, and when Styles lost the game, he had to get "Late Late" tattooed on his arm live on the show.
Ship Tattoo
Styles' ship on his left bicep has always been a fan favourite. The tattoo artist who did it said Styles wanted an English ship to remind him "that he's homeward bound."
Green Bay Packers Tattoo
Styles has long been a fan of the NFL team and got a tattoo of the Green Bay Packers logo on his upper left arm on a bet several years ago.
Iced Gem Cookie Tattoo
He has an iced gem cookie in this area of his left arm as well, presumably for his sister, Gemma.
Gemma in Hebrew Tattoo
The Hebrew letters on the top of Styles' left arm mean Gemma, again for his sister.
Pingu Tattoo
This small tattoo on Styles' left arm matches the Pingu character that Ed Sheeran has tattooed on himself. They got them after drinking one night and discussing how much they loved the cartoon.
"Hi" Tattoo
He has the word "Hi" tattooed on his inner left arm, and while fans have plenty of theories behind its meaning, Styles hasn't actually shared anything about it.
Star Tattoo
The star is sitting among the tiny tattoos on his left upper arm.
Clothing Hanger Tattoo
A clothing hanger is up in the same mess as Styles' other small tattoos on his left arm.
"Can I Stay" Tattoo
"Can I Stay" is at the top of his left arm.
Arlo and Jackson Tattoos
Styles has Arlo and Jackson tattoos on his left arm, supposedly for his godchildren.
Fly Tattoo
Fly There's a large flying insect on the inside of Styles' left arm. He has not confirmed their meanings.
Pink Floyd Tattoo
Styles' upper left arm has a small Pink Floyd "Dark Side of the Moon" logo.
Guitar Tattoo There's a small guitar at the top of Styles' left arm, almost on his back.
3 Nails Tattoo
These are on his upper left arm.
LA + NY + LON Tattoos
The three city abbreviations are on his upper left arm, and I can only assume they're three of his favourite places.
Black Heart Tattoo
Both Zayn Malik and former One Direction hairstylist Lou Teasdale also have this tattoo, and whether or not that makes it a friendship tattoo is up to you to decide, but I'm saying it is. You can find Styles' on his upper left arm.
R Tattoo
The "R" near the mermaid on his left arm is most assuredly for his stepdad, Robin Twist.