Fine, yes, it is a Jojo reference.
By Hideki Kamiya's own admission, the locker labeled "Jonathan" in this PS1 classic is a deliberate reference.
Resident Evil 2
Die.
Wanna pick a fight with a Steel Ball Run fan? Use this official name for its major Native American protagonist, whose correct spelling is a spoiler.
Sandman
Araki has met this actor, whose work on films like A Fistful of Dollars and Gran Torino were major influences on Jotaro.
Clint Eastwood
No, Josuke was never meant to go back in time and become his own savior. Araki's given this official statement on the savior's identity.
IT DOESN'T MATTER.
Persona Q: Shadow of the Labyrinth.
The titular mechanic in this Playstation RPG series is a pretty obvious sendup to stands.
Persona
The Capcom fighter's English version was... less than creative when trying to skirt around copyright, leading to names such as J. Gale, D'Bo, and this name for Justice's elderly user.
N-yah Gail
Araki's art has been displayed in numerous non-manga locations and mediums, including this famous museum.
The Louvre
Popularity polls, where Avdol placed last.
Koji Igarashi is clearly a big fan of the series, since nearly every one of his Castlevanias has a reference, but this fight in Dawn of Sorrow is a direct and obvious homage to Dio.
Zephyr
Though its true origin lies elsewhere (arguably Juno, from the Epic of Gilgamesh), Yukako Yamagishi is often credited for popularizing this character trope.
Yandere
Araki, for once, actually forgot that he had already used this name for the stand now known as Planet Waves.
Earth Wind and Fire
Araki has done many interviews with this singer/actress, who is an open fan of Jotaro and openly desires to be his unloved wife.
Shoko Nakagawa
No, Jotaro's Time Stop doesn't put any sort of strain on his heart. The origin for this is likely conflating him with a character from this series
Code Geass
Polnareff and Stroheim's hairstyles served as inspiration for this Street Fighter classic.
Guile
CLAMP, authors of Cardcaptor Sakura and character designers for Code Geass, tend to reinvent their interpretation of this Jojo ship in their works.
Jotaro/Kakyoin
For unknown reasons, this initial name for Made in Heaven didn't survive the transition to the volume release.
Stairway to Heaven
Golgo 13
No, Cream wasn't the first stand to be named after music. It is chronologically, but he wasn't given a name until this artbook, released well after Part 4.
Jojo 6251
"Thirteen. I prefer Japanese food."
This iconic vampire killer's seiyuu got his role because of his work as Jotaro in the Part 3 Drama CD.
Richter Belmont
Ever wonder what's up with the name of the Capcom fighter? It's actually an official name for Part 3, used in this scenario.
The initial serialization in Weekly Shonen Jump
Araki has actually explained how he maintains his youthful appearance. He simply washes his face with this.
No, despite his hole-filled outfit, Fugo is not designed around cheese. His original manga coloration, name, and shoes all point to this food theme, instead.
Strawberries.