Cynegeticus (Ancient Greek: Κυνηγετικός, Kynegetikos "related to hunting" from κυνηγέω "I hunt"), is a treatise by the ancient Greek philosopher and military leader Xenophon, usually translated as "On Hunting" or "Hunting with Dogs."

It is one of the four works by Xenophon on arts or skills (each ends with -ikos/-icus). The other three are: Hipparchicus ("The Skilled Cavalry Commander") Peri Hippikes ("On Horsemanship"), Oeconomicus ("On Estate Management").

Xenophon begins discussing the importance of hunting and how the gods Apollo and Artemis bestowed game and hounds upon Chiron the gentle centaur who used hunting to teach twenty-one heroes. The heroes mentioned are: Cephalus, Asclepius, Meilanion, Nestor, Amphiaraus, Peleus, Telamon, Meleager, Theseus, Hippolytus, Palamedes, Odysseus, Menestheus, Diomedes, Castor, Polydeuces, Machaon, Podaleirius, Antilochus, Aeneas, and Achilles. Xenophon goes on to describe the excellence of each individual "hero," although many of his reasons are rather awkward upon other instances of them in literature. Hunting, Xenophon claims in the conclusion to the chapter, "are the means by which men become good in war and in all things out of which must come excellence in thought and word and deed" (I.18, E. C. Marchant translation).

Xenophon attends to the young man who is to hunt and his attire with explanation to each item's purpose, and also the net-keeper who is to assist him, including a brief detail of the net required.

Xenophon writes concerning the two types of hounds to be used: the Castorian and the Vulpine. He gives extremely detailed descriptions of the temperament of various dogs. Some of the defects in the hounds are due to nature, but they can also be due to bad training.

The physical characteristics of the superior hound are described, as well as the initial training needed in various seasons for the proper hunting of hares.

The seasons and the difficulties particular to each of them in the pursuit of hares are presented. Also the physical characteristics and the habits of the hare are analyzed at length.

Xenophon begins with means of restraining hounds before they are off to hunt, but quickly moves into the early morning preparations for the hunt. Xenophon also discusses how the net-keeper is to prepare himself. Once the hunt has begun and the hunting party has reached a place to find a hare they are to offer a "vow to Apollo and Artemis the Huntress" that they will share their prize with them. It is only now that the hound is to be let loose to find the trail of the hare, which it will pursue when it is found. Once the hunt has begun the huntsman should verbally praise the hound. If the hare is caught in the first attempt the hounds should be brought back in and they should search for another. Otherwise the pursuit has really begun, and Xenophon really makes a game of it with constant verbal remarks towards the hounds. Once the dogs are tired from hunting the huntsman should search on his own.