Iron Golem is a buildable neutral mob that attacks hostile mobs by knocking them into the air with its powerful arms. Naturally spawned iron golems patrol villages, protecting villagers from zombies, pillagers, and other threats. They may also attack players if they harm villagers or have a low reputation in the village. Iron Golems drop 3–5 iron ingots upon death.

Iron Golems can be manually created by placing four iron blocks in a T-shape, with a carved pumpkin or jack o'lantern on top. Once created, the Iron Golem becomes active and begins patrolling the area. Iron Golems cannot be bred, but they can be healed by using iron ingots, which restore 25 health points per ingot and repair visible cracks on their body.

Iron Golems do not attack players unless provoked, but they will defend villagers against hostile mobs. If a player attacks an Iron Golem or has a low reputation in a village, the golem will become hostile toward them. They are immune to fall damage and drowning, making them durable defenders. Iron Golems can also be leashed with a lead, allowing players to transport them to different locations.