Deer hunting is the activity or sport of pursuing deer with the use of new or gun sale or other weapons permitted by the states during definite times of the deer season. It is the practice or hobby of chasing after deer considered to be living animals of the wildlife. The practice of deer hunting has already become lawful as differentiated from poaching, which is the illegal killing, trapping and capture or taking of plants and animals contrary to the conservation and wildlife management’s local and international laws. The weapons used in deer hunting include bows, crossbows, rifles, shotguns, pistols, and muzzleloaders.

Archery season or the use of archery in hunting usually opens before the gun season and may continue even after the gun season has ended. Gun season is the period when guns are allowed for hunting. Modern compound bows and re-curve bows are used, as well as some re-curve and longbows. Crossbows are commonly used and reserved for disabled hunters who are unable to draw a bow, but are allowed to be used in Minnesota and Kansas.

The most commonly used guns for deer hunting are rifles, shotguns, and pistols. There are limits placed by regions on the minimum caliber or gauge to be used like the Rim fire rifles of .22 calibers which are often prohibited due to ethical concerns and humane kills. Most states require rifles that are center fire. Some areas in the United States prohibit the use of rifles but allow the use of shotguns. Some places however, like the Michigan Department of Natural Resources, for example, divide the state into a "Southern Shotgun zone" and a "Northern Rifle zone," reflecting concerns based in population densities.

Muzzleloader hunting is also practiced with the use of lead balls that are round and traditional charges of black powder. This firearm, like using used guns for sale, is loaded through the muzzle with gunpowder, sometimes with some wadding, but optional, and then a bullet, which is usually a solid lead ball, but musketeers could shoot stones when they ran out of bullets. Improved muzzleloaders, usually the rifled one instead of smooth-bored, are manufactured today and have many enthusiasts, many of whom hunt large and small game with their guns. Muzzleloaders have to be patiently and manually reloaded after each shot.

Using sharp-edged weapons in deer hunting, such as the lance or sword, is still practiced in continental Europe, primarily in France. In such hunts, the hunters are positioned on horseback, and use packs of dogs of the deerhound or greyhound breeds used to track and drive the deer. Only the hunt masters or the leader have the right to deliver the death blow, while other mounted hunters on horseback simply ride in the pursuit. Alabama is the only state that permits spear hunting of deer during its archery season.