There is a plaque with the letters WKM hidden in a rock spire in Orgrimmar. The area is not usually accessible but can be reached by using glitches.

In Grizzly Hills, you can find a deer named Bambina following his mother, alongside a skunk named Flora and a rabbit named Thudder. Following them, you'll come across a scripted event where a hunter shoots and kills Bambina's mother and Bambina will go into a murderous rage, gaining the "Bambina's Vengeance" buff. This is a reference to the children's classic Bambi.

During the release day of the film Star Wars: The Force Awakens, guards in the cities of Orgrimmar and Stormwind had swords resembling lightsabers equipped in celebration. Stormwind guards had blue sabers whilst Orgrimmar guards had orange ones.

The icons for the Red-Speckled Mushroom, Essence Infused Mushroom, Power Infused Mushroom, and Mushroom of Destiny items appear similar to the "Super Mushroom" power-up from the Mario series by Nintendo.

The character Boss Mida in Orgimmar's Goblin Slums is a tribute character based off the Trade Princess Movement, where players nominated a fan-made character named Mida Silvertongue as Trade Prince of the Bilgewater Cartel.

The Broken Draenai share their animations and laugh with the Tauren, along with the skeleton from the Tauren model.

There is a happy face hidden under Karazhan.

The Jaina's Locket teleportation item from Icecrown Citadel bears a strong resemblance to the collar worn by Scooby Doo.

The Crypts of Karazhan, though incomplete, are very developed and detailed with multiple locations. It is unclear why they were made inaccessible through normal means, but it may have been due to the gruesome nature of the area.

Through the use of glitch exploitation, it is possible to find sections of Elwynn forest, Stormwind and Westfall in The Everbloom dungeon.

During Wrath of the Lich King, until July 7th 2009, it was possible to tame a worgen character named "Garwal" by using tame pet as he assumed his humanoid form. The captured worgen were later changed to winterskorn worgs.

The baby murloc dance is a reference to the chuck Jones character, Michigan J. Frog, most well known for using a top hat and cane while singing and dancing in the style of a vaudeville performer.

Added in the expansion World of WarCraft: Legion, you can find in Bradenbrook within the area Val'sharah the NPCs Arin Hanson, Jon Jafari and Ross O'Donovan who're named after the hosts of the let's play series Game Grumps.

The Chinese version of World of Warcraft is censored to hide instances of blood, gore, and death, and replaced instances of bone or gore with other objects such as sandbags and bread. Undead creatures have also been edited to remove any graphic or gory details.

In the Battle for Azeroth expansion there is a Kingdom Hearts reference. Specifically, if the player goes to the Thresher's Wharf area of Stormsong valley and climb a tall structure they can find three Beleaguered Watchmen looking out dramatically at the water. The way they are positioned, dressed, and how the scene is choreographed, make them look like the three original human characters from Kingdom Hearts: Sora, Kairi, and Riku.

Samwise Didier, the senior art director for Blizzard Entertainment, drew a paladin for a friend's card game, which was left unused and instead ended up being used for World of Warcraft to create Uther. Didier carried over the paladin's mask to another character he drew, which was the inspiration for Ilidan, who he made concept art for back in 2000. The character Ilidan originally carved his eyes out to allow Demonics to sense demons which allowed him to use demonic energy against them back when he was a protagonist at one point during development.

In the Shadowlands expansion, the guards in Oribos use giant, mustached human models underneath their armor.