1. After Magneto was believed dead in the Genoshan holocaust, he became a popular t-shirt logo and graffiti image.
2. The DC Comics super-villain Doctor Diehard of the Extremists is based on Magneto.
3. A Jack Kirby close-up image of Magneto's face was used as source material for Roy Lichtenstein's Image Duplicator (1963).
4. While Magneto is Jewish, he maintained a cover identity as a 'Sinte Gypsy' when searching for his wife Magda. This created confusion amongst some readers as to his heritage, until it was authoritatively confirmed that he is Jewish. It should be noted that this confusion probably stems from a comic book published in the early 1990s which attempted to retcon Magneto into being a Sinti, possibly because Marvel was preparing to make Magneto a deadly villain again in the crossover called "Fatal Attractions" and they did not want to draw accusations of anti-Semitism by having one of their main villains be Jewish. This attempted retcon was corrected a few years later when it was revealed that the name "Erik Lehnsherr" and the Sinte ethnicity were part of a cover identity, as mentioned above.
5. Magneto's redemption was chronicled in the pages of New Mutants. Uncanny X-Men #150 is the first issue to start developing Magneto's origin as a prisoner of Auschwitz and his marriage to Magda.
6. Magneto's Auschwitz tattoo was originally seen as 214782 in Uncanny X-Men #161. However, this was a number too high for him to have been among the first group of prisoners to be tattooed there. The number was retconned in Excalibur (Vol. 3) #2 to 24005, but appeared again as 214782 in X-Men: Black - Magneto #1.
7. "Eisenhardt", or rather "Eisenhart" means "hard as iron", a convenient name for the Master of Magnetism. It can be pronounced as "ice 'n' heart".
8. Magneto's pseudonym "Lehnsherr" is often pronounced incorrectly as "Lanshir". Actually the name is composed of two German words: "Leh(e)n" meaning "feud" and "Herr" meaning "master" in that instance. In German 's' is a connective between two combined words sometimes. It could be pronounced as "lens hair" ("e" like in "help" but longer).[226] It's the German word for "liege lord".
9. Magneto was ranked 1st on IGN's Top 100 Comic Book Villains in 2011.
10. The album Venus and Mars by Wings included a song about superheroes called "Magneto and Titanium Man". Paul McCartney was said to have toured the Marvel offices soon after the album came out in the Bullpen Bulletins and it was claimed that he was a fan of Marvel Comics. The song referenced the names of two other Marvel villains (Titanium Man and the Crimson Dynamo). Another song to feature Magneto is the Tearjerkers' "Comic Book Heroes" from the various artists' compilation Through the Back Door, in which some of the lyrics were "Doc Ock, Von Doom and Magneto, don't wanna be like them."
11. "Magneto" was a song by the post-hardcore band Brigade, fronted by Charlie Simpson's brother Will.
12. Magneto carries an archive containing a hologram with the names of numerous mutants violently killed.
13. After his encounter with the Phoenix, his powers now more closely resemble the powers of his movie counterpart who is only able to manipulate strictly metallic objects.
14. For much of the original appearance of the Brotherhood of Evil Mutants, its members kept referring to him as "the Leader", instead of calling him Magneto.
15. Magneto tried to explain to the Brotherhood of Evil Mutants that their personal feelings (and the mutual dislike between team members) are meaningless. In his view, only their plans were important. However, Magneto himself had trouble controlling his anger.
16. The Toad's flattery to Magneto included proclamations that Magneto was born to rule.
17. While Toad loudly proclaimed his loyalty to Magneto, Magneto found him annoying. He threatened Toad to remain silent.
18. In an early battle between the X-Men and the Brotherhood of Evil Mutants, the X-Men captured the Toad and the Brotherhood captured the Angel. Magneto expressed his belief that their hostage was more valuable than the "high-jumping fool", and was ready to abandon the Toad.
19. Magneto has claimed to be able to sense the greed and envy of a man's heart, even when meeting this man for the first time. He finds it easy to manipulate others through these qualities.
20. To secure victory over the X-Men, Magneto was willing to sacrifice Quicksilver's life in a deadly attack on them. He threatened to kill the Scarlet Witch as well, for defying his orders.
21. While listening to another proclamation of loyalty by the Toad, Magneto contemplated that he did not actually need the loyalty of his followers. He expected to rule over them by using their fear for him. He chose to not share his thought with the other members of the Brotherhood.
22. According to Mastermind, Magneto has no emotions and no heart.